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181 Science ABS-80

Formulation of Production Medium for Biosurfactant Producing Bacteria Staphylococcus arlettae MPP-1 and Their Emulsification Activity
Mieke Alvionita1,a), Agustono Wibowo2), Rahmad Rizki Fazli3), and Nia Rahayu W1

1Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No. 5, Malang 65145, Indonesia
2Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM) Pahang Branch, Jengka Campus, 26400 Bandar Tun Abdul Razak Jengka Pahang, Malaysia
3Chemistry Department, FKIP Universitas Syah Kuala, Darussalam, Banda Aceh, 23111, Indonesia


Abstract

Biosurfactants still continue to be an interest for several industry sectors considering their eco-friendly natures. Therefore, the biggest challenge today is how to find out the optimal conditions so that biosurfactant production will increase. This research focuses on the production of biosurfactants using indigenous bacteria, Staphylococcus arlettae MPP-1. Optimization was performed in order to find out the best products which included glucose concentration, pH, NaCl concentration, and nitrogen source type. The best biosurfactant activity was validated based on the results of the oil spreading and emulsification activity tests. Based on the results gained, the highest emulsification and oil spreading activity values were obtained from a medium containing 2% glucose, 0.2% NaNO3, 7% NaCl, and pH 6. The best diameter of the clear zone was about 1.1 cm, while the emulsification index (IE24) showed more than 70% after 96 hours of incubation using a temperature of 37 oC and an aeration speed of 100 rpm. Preliminary structural analysis through FTIR showed some of the following absorption bands include 3,303 cm-1 O-H stretching, the stretching bands of the amide and ester C=O groups at approximately 1,669 and 1,090 cm-1 as well as N-H and C-N-H vibrations at around 1,636 and 559 cm-1, respectively which suggests that the spectrum of biosurfactants was relatively similar to that of the glycolipids biosurfactant group.

Keywords: Optimization, production, biosurfactant, Staphylococcus arlettae

Share Link | Plain Format | Corresponding Author (Nia Rahayu W)


182 Science ABS-111

Synthesis Of Crosslinked Carboxymethyl k-Carageenan Ion Printed Coated Nanomagnetite as Pb(II) Adsorbent
Mira Nur Fadilah*, Dr Irma Kartika K, Dr. Sc Anugrah Ricky Wijaya

Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Malang
Jalan Semarang 5, Malang 65145


Abstract

This research was conducted to synthesized Magnetic Solid Phase Extraction (MSPE) adsorbent, to adsorb Pb(II) ions. The MSPE adsorbent consists of a magnetic part as a core and a coating as an analytebinder. The aim of this research was to synthesize carboxymethyl kappa-carrageenan (CMKC) coated nanomagnetite which was crosslinked with bisphenol A diglycidyl ether (BADGE), as Pb(II) ion adsorbent.This research was conducted in several stages, that is, synthesis of nanomagnetite and its physicochemical characterization, using SEM, FTIR, and XRD instruments, CMKC synthesis and characterization by FTIR, synthesis of Pb(II) ion-imprinted BADGE-coated CMKC-coated nanomagmetites, which were characterized using FTIR, SEM and XRF instruments, and tested its adsorption ability to metal ions. The synthesized magnetite has a size of 28 nm, the formation of magnetite was confirmed by the absorption peak in the FTIR spectrum resulting from the synthesis of magnetite, typical Fe-O peaks at 581.35 cm-1 and 443.5 cm-1. The magnetite synthesized diffractogram is identical to the Fe3O4 diffractogram. CMKC was successfully synthesized, confirmed by the appearance of the absorption peak of the C=O group at wave numbers 1604 cm-1 and 1443 cm-1, shows asymmetric and symmetrical vibrations of the -COO- group, in the FTIR spectrum, indicating a carboxyl group. The adsorbent in the form of CMKC coated nanomagnetite cross-linked with BADGE, printed with Pb(II) ions, was successfully synthesized, the surface of the adsorbent is rough, porous, and pleated, FTIR spectrum of the adsorbent, showed that crosslinking and mold formation caused the C=O asymmetric vibration peak to shift to 1650 cm-1.The adsorbent has the adsorption ability (Kads) to Pb(II) ions of 0.156 mg Pb(II)/g adsorbent. The selectivity test showed that the adsorption capacity of the adsorbent on Pb(II) was greater than the adsorption capacity of Cu(II) ions.

Keywords: nanomagnetite, carboxymethyl kappa-carageenan(CMKC), Pb(II)

Share Link | Plain Format | Corresponding Author (Mira Nur Fadilah)


183 Science ABS-114

The Effect of Rice Dishwater on the Growth of Pakcoy Plants (Brassica rappa chinensis)
Mimien Henie Irawati Al Muhdhar (1,a*), Fahrinda Naila Amalia(1,b), Zelvia Aprima Putri(1,c), I Wayan Sumberartha(1,d), and Racy Rizky Abdillah (1,e)

1) Department of Biology, Faculty of Mathematics and Sciences, State University of Malang, Jln. Semarang 5 Malang 65145, Indonesia.
*mimien_henie[at]yahoo.co.id


Abstract

Rice dishwater can be produced daily and can increase and stimulate the growth of plant roots. Rice dishwater is rich in vitamin B, minerals, and several micronutrients and macronutrients that contribute to the growth of plants. Vitamin B1 can convert a high carbohydrate into energy in the bioprocess as a medium of auksin and ilin hormones. The pakcoyis selected, since much of it is consumed with a relatively short crop of 25 to 30 days. This research aimed to see whether or not there was the best impact and concentration of rice dishwater on the growth of the pakcoy. The research was a classified experiment conducted using random group designs (shelves), with 20 experimental units, covering four treatments repeated five times and some concentrations as follows. 0ml as variable control (non-treat), 15ml/liter of water, 20ml/liter of water, and 25ml/liter of water. The data was analyzed using an anacova test with a value of 0.001 < 0.05, which means there is an effect of watering rice on the growth of the pakcoy. Performed pairwise comparation tests with significant values as follows. A) length of roots (0,000 <0.05)- B) plant height (0,000 <0.05)- C) the diameter of the stem (0.102 >0.05)- D) leaf width (0,000 <0.05). Next, a bivariate test with the value of its significance is as follows. A) root length (0.003 <0.05)- B) the height of the plant (0.002 <0.05)- C) the diameter of the stem (062 >0.05)- D) leaf width (0.001 < 005). It could be concluded that distributing rice rinse with the best concentrations of 25 ml/liter of water affects on the growth pakcoy of the root length, plant height, and leaf width.

Keywords: Growth, Pakcoy, Rice dishwater

Share Link | Plain Format | Corresponding Author (Mimien Hanie Irawati Al Mudhar)


184 Science ABS-130

Synthesis of MnO2 as Supercapacitor Electrodes Material by Green Chemistry Method Through Dehydroxylation of Tangerine Peel (Citrus reticulata) Essential Oil
Dewi Jalinan Izzah, Fauziatul Fajaroh, Adilah Aliyatulmuna, Sumari, Siti Marfu^ah

Universitas Negeri Malang


Abstract

In this digital era, most human work requires electronic equipment. The performance of electronic equipment may be affected by energy storage components. Supercapacitors are one of the energy storage components, so the development of supercapacitor electrode materials using green chemical methods needs to be pursued, considering the need for renewable energy sources is increasing. Electrode material with a good specific capacitance compared to other materials, namely MnO2. However, most of the MnO2 synthesis methods are not based on green chemistry, so there needs to be an alternative method based on green chemistry. One of them is by utilizing the waste from tangerine peels. This study aimed to synthesize MnO2 from KMnO4 through dihydroxylation of tangerine peel essential oil in alkaline conditions.
The steps for conducting this research consisted of: 1) Isolation of tangerine peel essential oil using steam-water distillation, 2) Analysis of the constituent components of tangerine peel essential oil using GC-MS, 3) Synthesis of MnO2 from KMnO4 through dihydroxylation of essential oils tangerine peel, and 4) MnO2 characterization using XRD and SEM.
XRD test results showed that the MnO2 synthesized at pH 11 had the highest percentage of &#945--MnO2 (97%). This is evidenced by the presence of &#945--MnO2 diffractogram according to the ICSD standard pattern No. 20227. The SEM test results showed that the MnO2 synthesized at pH 11 had a spherical morphology but agglomerated with an average particle diameter of 39.51 nm. In addition, &#945--MnO2 has a larger (2 x 2) tunnel structure compared to &#946-- and &#947--MnO2. This makes it easier for the charge-discharge process, so that &#945--MnO2 has the potential as a supercapacitor electrodes material.

Keywords: Tangerine peel essential oil, green chemistry, MnO2, supercapacitor electrode

Share Link | Plain Format | Corresponding Author (Dewi Jalinan Izzah)


185 Science ABS-131

Stilbenes Derivatives from Cryptocarya apamifolia (Lauraceae)
Dian Nugraheni, Yana Maolana Syah, Lia Dewi Juliawaty

Organic Chemistry Division, Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia


Abstract

Cryptocarya is one of the large genera in the Lauraceae family. It has been used as traditional medicine, such as to cure sore eye, stomachache, cough, and diarrhea. Moreover, it economically has also value for building materials and pulps. This genus contains flavonoids, &#945--pyrones, and alkaloids as major compounds, along with other compounds, including stilbenes, lignans, and terpenoids. Those compounds showed various bioactivities, such as anticancer, antiviral, antiinflammatory, and anti-Alzheimer. One of the species growing in Papua is C. apamifolia which has never been reported previously, so that it has become important to study its phytochemistry and bioactivities. Therefore, the objective of this research was to isolate the secondary metabolites of the stem bark of C. apamifolia and to analyze their inhibition activity against tyrosine kinases. The isolation and purification of the compounds have been carried out through various chromatography techniques. The structures of isolated compounds were determined by analyzing data of 1D-NMR (1H and 13C), 2D-NMR (HMBC and HSQC), and compared with literature data. The bioactivity assay was performed against eight RTK^s (EGFR, HER2, HER4, InsR, KDR, VEGFR, PDGFR&#945-, PDGFR&#946-). As a result, three known stilbenes have been isolated, identified as pinosylvin, pinosylvin monomethylether, and reflexanbene I. Stilbene compounds in Cryptocarya genus is still limited and only obtained from Indonesian species. Pinosylvin and reflexanbene I were isolated from the first time in this genus, but pinosylvin monomethyleter was once reported from C. idenburgensis. Meanwhile, reflexanbene I has been found in Lindera genus (Lauraceae) that also showed close relationship between Cryptocarya and Lindera genus in this family. Furthermore, those compounds showed moderate activity against EGFR, with their % inhibitory being 40%, 39%, and 41%, respectively. Therefore, they could potentially become tyrosine kinase inhibitor agents

Keywords: Cryptocarya apamifolia- Lauraceae- stilbenes- tyrosin kinase inhibitor

Share Link | Plain Format | Corresponding Author (Dian Nugraheni)


186 Science ABS-136

The Dynamic model of the spread of the COVID 19 virus in the Greater Surabaya Agglomeration Area on the effect of returning home and vaccination
Hariyanto,Chairul Imron,Suhud Wahyudi,Sentot Didik Surjanto

Institut Teknologi Sepuluh Nopember(ITS)


Abstract

Abstract. The decrease in the individual population exposed to COVID 19 transmission is inversely proportional to the increase in the number of the vaccinated population, it is hoped that on returning home for Eid, it will be a guide for the creation of community immunity in order to prevent the spread. This paper specifically observes the Greater Surabaya Agglomeration area, among other by construction a regional system model, agglomeration system model and analyzing the behavior of the system on the spread after it is carried out relaxation of health protocol through a dynamic system -based model

Keywords: Model, Vaccine, Agglomeration, Dynamic System

Share Link | Plain Format | Corresponding Author (HARIYANTO HARIYANTO)


187 Science ABS-164

COMBINED RATIO ESTIMATION USING COEFFICIENT OF VARIATION AND COEFFICIENT KURTOSIS TO ESTIMATE POPULATION VARIANCE WITH STRATIFIED RANDOM SAMPLING
Gilang Al Ghozali (1a*), Etik Zukhronah (b), Sugiyanto (b)

a) Universitas Sebelas Maret
*gilangalghozali[at]gmail.com
b) Universitas Sebelas Maret


Abstract

It is difficult to know the value of the true variance parameter of a population. Therefore, an estimation method is used to estimate the value of a variance parameter. The ratio estimator can be used to estimate the variance parameter. Ratio estimator is an estimation method that utilizes a positive correlation between research variables and auxiliary variables. This study aims to compare the mean squared error of population variance estimators in stratified random sampling which includes classical estimators, combined ratio estimators with auxiliary variables, and combined ratio estimators with modified auxiliary variables using the coefficient of variance and coefficient of kurtosis. With the best estimator criteria with an average square of error that is smaller than the others. Re-reducing the mean squared error is carried out using a Taylor series approach of order 1. The data used to compare the population variance estimators are rice production data for each district/city in Java Island in 2019 as research variables and land area data as auxiliary variables. Based on these data, the combined ratio estimator with modified auxiliary variables using the coefficient of variance and the coefficient of kurtosis is more efficient than other estimators.

Keywords: Variance- Ratio estimator- Stratified random sample- Mean square of error- coefficient of variation- coefficient of kurtosis.

Share Link | Plain Format | Corresponding Author (Gilang Al Ghozali)


188 Science ABS-182

Changes in The Essential Oil Profile of Arabica Coffee Beans during Coffee Roasting
Ega Rinata Dwi Ashudik, Surjani Wonorahardjo, Suharti, Irma Kartika Kusumaningrum

Departmen of Chemistry, Faculty of Mathematics and Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia


Abstract

During the roasting of coffee beans, some essential oil is produced. Roasted arabica coffee essential oil is rarely used. Essential coffee oil brings coffee^s aroma. This study aims to analyze the profile of Arabica coffee essential oil produced during roasting at around 210 and 230 &#730-C. The oil was collected from the surface of roasted beans and the roaster before dissolving in n-hexane solvent. This solution was analysed using GC-MS and FTIR instrumentation The results of the GC-MS profile revealed several groups of compounds: alkanes, cycloalkanes, haloalkanes, aldehydes, ketones, alcohols, esters, and aromatic hydrocarbons which are associated with the appearance of several functional groups in the FTIR. Better processing is also recommended to obtain coffee essential oil in each roast temperature of the coffee. In this case, the coffee essential oil would be beneficial for some industries.

Keywords: Essential Oil of Coffee- Arabica Coffee- Roast- Profile Components- GC-MS- FTIR

Share Link | Plain Format | Corresponding Author (Ega Rinata Dwi Ashudik)


189 Science ABS-187

Effect of Solvents on The Extraction of Sembung Rambat (Mikania micrantha) Leaves on Phytochemical Content, Antioxidant Activity, and Toxicity of Extracts
Shierlly Natasya Dwi Vanny Yulis Prianti, Siti Marfuah, Sutrisno, Daratu Eviana Kusuma Putri

Department of Chemistry, Faculty of Mathematics and Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia


Abstract

Sembung Rambat (Mikania micrantha) is a creeping weed that is detrimental to the agricultural sector but contains various health benefits, one of which is anti-cancer. One of the causes of cancer in humans is free radicals that cause oxidative stress. Compounds that can prevent this are antioxidants. This study aims to determine the effect of the solvent on the total phytochemical content of phenolics, flavonoids, and tannins, as well as on the antioxidant activity and toxicity of sembung rambat (Mikania micrantha) leaf extract. Furthermore, this study aims to determine the effect of total phenolic content, flavonoids, and tannins on antioxidant activity and toxicity of sembung rambat (Mikania micrantha) leaf extract. Extraction was carried out by maceration using water, ethanol (96%), ethanol (96%)-water (1v:2v), ethanol (96%)-water (1v:1v), and ethanol (96%)-water (2v:1v) solvent. The extract was concentrated using a rotary evaporator and then tested for phytochemical content qualitatively and quantitatively to determine the total content of each compound. Antioxidant activity was tested using the 1,1-Diphenyl-2-Picrylhydrazine (DPPH) method. Toxicity test using the Brine Shrimp Lethality Test (BSLT) method. The results showed that the solvent used for sembung rambat (Mikania micrantha) leaf extract affected the phytochemical content, antioxidant activity, and toxicity. The extracted phytochemicals also affect the antioxidant activity and toxicity. Extracts with a solvent ratio of ethanol (96%)-water (2v:1v) contained the highest total phenolics, flavonoids, and tannins compared to other solvent extracts. The extract from the ethanol-water (2v:1v) solvent has a very strong antioxidant activity with an IC50 value of 2,528 micrograms/mL, and its toxicity is classified in the toxic category with an LC50 value of 229,572 ppm. Therefore, sembung rambat (Mikania micrantha) leaf extract has potential as an anticancer.

Keywords: Mikania micrantha- Extraction- Ethanol-water- Phytochemical- Antioxidant- Toxicity

Share Link | Plain Format | Corresponding Author (Shierlly Natasya Dwi Vanny Yulis Prianti)


190 Science ABS-195

SYNTHESIS AND CHARACTERIZATION OF SiO2 FROM MADURA STRAIT SEDIMENT
Arif Hidayat, Anugrah Ricky Wijaya, Irma Kartika K, Alif Alfarisyi Syah, and Lukluatus Syavika

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Univeritas Negeri Malang, Jl. Semarang 5 Malang 65145, Indonesia


Abstract

The SiO2 has been successfully synthesized from Madura Strait sediment. The process of making SiO2 goes through a wet digestion step using strong acid to decompose the sample, followed by an ashing technique to get the solidand purified with strong acid to remove impurities in it so that a white solid sedimentary material is obtained. The prepared sample was characterized by using XRF and FT-IR. Si content in the raw sediment increased after removal of impurities from 33.5% to 83.3%. Tests using FT-IR observed Si-O-Si and Si-OH groups in the form of groups of silanols and siloxanes.

Keywords: SiO2, sediment, Madura strait

Share Link | Plain Format | Corresponding Author (Arif Hidayat)


191 Science ABS-213

Essential Oil from Sweet Orange Peel (Citrus sinensis) for Solid Preparation Parfumes
Sutrisno, Riza Agung Pribadi, Siti Marfu^ah, and Daratu Eviana Kusuma Putri

Departement of Chemistry, Faculty of Matematics and Natural Sciences,State University of Malang, Jl. Semarang 5, Malang, 65145, East Java, Indonesia


Abstract

Consumption of sweet oranges (Citrus sinensis) has grown in tandem with the rise of Coronavirus disease diagnoses in 2019 (COVID 19). The increase in citrus is proportionate to the amount of waste produced. Sweet orange is one type of orange that has fruit skin that makes essential oils. A solid perfume with a sweet orange scent with added value for testing antioxidant activity and sunscreen is a novelty of research. This research consists of 6 stages: 1) isolation of sweet orange peel essential oil by steamwater distillation- 2) characterization of sweet orange peel essential oil via form, colour, density, boiling point, refractive index, and optical rotation. 3) technique of searching for orange peel essential oil using Gas Chromatography Mass Spectrometer (GCMS), 4) antioxidant activity test with DPPH and sunscreen activity test using spectrophotometry, 5) formulation of solid dose perfume utilizing an Indonesian Pharmacopoeia Editions V, and 6) evaluation formulation of solid parfumes. This oil is liquid and light yellow, with a density of 0.876 g/mL, a boiling point of 163.3 degree Celcius, a refractive index of 1.468 (25 degree Celcius), and optical rotation (plus)105,5degree. Sweet orange peel essential oil contains limonene (72.34%), octanal (5.64%), linalool (5.44%), beta myrcene (4.60%), decanal (2.24%), alfa pinene (1.32%), cis citral (0.98%), terpineol (0.65%), sabinene (0.67%), and beta pinene (0.10%). The results of the antioxidant activity test of sweet orange peel essential oil have an IC50 value of 318.301 mikro g.mL minus 1. The results of the analysis showed that sweet orange peel essential oil absorbs UV rays with an SPF value of 7.3724. Sweet orange peel essential oil has the potential as an antioxidant to ward off free radicals and a sunscreen to reduce UV radiation. The solid perfume formulation of sweet orange peel essential oil produces 2 formulas. Formula 2 has good results and is safe to use on the skin.

Keywords: Sweet Orange, Sweet Orange Peel, Essential Oil, and Solid Perfume.

Share Link | Plain Format | Corresponding Author (Riza Agung Pribadi)


192 Science ABS-218

The Role of Indigenous Crop to Improve Food and Nutrition Security in Indonesia
Prima Luna (a*) and Habiddin Habiddin (b)

a) Ministry of Agriculture, Indonesia
*primaluna305[at]gmail.com
b) State University of Malang, Indonesia


Abstract

Prior to the COVID-19 epidemic, the world was not on track to reach its goals to end world hunger and all forms of malnutrition by 2030. Now, the epidemic has made this far more difficult. The COVID-19 epidemic has exacerbated four critical factors that are harming food security and nutrition around the world. These significant determinants have a negative influence on food security and nutrition by generating many, compounding effects throughout our food systems. Climate variability and extremes are an external factor that influences food systems. Its detrimental effects on food security and nutrition are exacerbated by persistently high levels of inequality. On the other hand, drivers that are internal to food systems, such as low productivity and an inefficient food supply chain, are pushing up the price of nutritious foods, which, when paired with low incomes, exacerbates the unaffordability of healthy diets, especially in countries affected by several drivers. Because they cannot afford a healthy diet, millions of people in each nation suffer from food insecurity and malnutrition in all of its forms. This study aims to assess the potential of indigenous crops to contribute to national food and nutrition security, as well as to characterize their chemical and functional properties. Coix lachryma-jobi L., often known as Jali or Adlay, is cultivated as an alternative staple food. This crop and the new development product have been characterized using proximal analysis. Previous research has demonstrated that Jali has several nutritional and physiological benefits. In this plant, anti-diabetic bioactive compounds have been identified. In addition to squalene, campesterol, vitamin E, and polyunsaturated fatty acids. Jali has the potential to generate some functional foods and also has industrial applications. Bioactive compounds may be altered during processing. Furthermore, Jali has enormous promise as a functional food. The seed contains around 20 percent protein,

Keywords: Jali- Indigenous crop- Functional food- Properties- Food security

Share Link | Plain Format | Corresponding Author (Prima Luna)


193 Science Education ABS-9

Development of E-LKPD Based on Guided Inquiry Assisted by Augmented Reality and Three Dimensions on Human Excretory System Material
Isnanik Juni Fitriyah*, Wilda Qurrota Ayuna, Rif^atul Himmah

Program Study of Science Education, Faculty of Mathematic and Sciences, Universitas Negeri Malang, Indonesia
*isnanik.fitriyah.fmipa[at]um.ac.id


Abstract

21st century education demanded learning that places students as active subjects in the learning process. Electronic Student Worksheets (E-LKPD) combined with guided inquiry and collaborating with Augmented Reality (AR) and three-dimensional (3D) technology could make learning more student-centered and facilitated the learning process in the era of rapid technological developments and the pandemic covid-19. The purpose of this research was to produce a guided inquiry-based E-LKPD with the help of AR and 3D on valid and practical human excretory system material to be used in science learning at the VIII grade junior high school level. This study used research and development methods with a 4D development model consisting of the stages of defining, designing, developing, and disseminating, but in this study, there was no disseminate stage. The E-LKPD was tested on a limited basis to 32 students of class VIII G SMP Negeri 24 Malang. This study resulted in a guided inquiry based E-LKPD with the help of AR and 3D on valid and practical human excretory system material used in science learning at the VIII grade junior high school level. The validity of the developed E-LKPD obtained a percentage of 98.02% with a very valid category. The practicality of the E-LKPD in terms of the assessment process, students obtained a percentage of 97% with a very practical category. Meanwhile, the practicality of E-LKPD in terms of student responses obtained a percentage of 93.25% with a very practical category.

Keywords: E-LKPD, Guided Inquiry, Augmented Reality (AR), Three Dimensions (3D), Human Excretory System

Share Link | Plain Format | Corresponding Author (Isnanik Juni Fitriyah)


194 Science Education ABS-10

The Effectiveness of Using Snake and Ladder on Students Learning Motivation on Living Things Interaction Materials
Isnanik Juni Fitriyah*, Inka Prananda Putri, Novi Eka Putri

Program Study of Science Education, Faculty of Mathematic and Sciences, Universitas Negeri Malang, Indonesia
*isnanik.fitriyah.fmipa[at]um.ac.id


Abstract

Covid-19 has had a significant impact on the world of education, so most learning activities are carried out online or Limited Face-to-face Learning (PTMT). Based on the evidence of the number of tasks that are not done and the value of learning outcomes that decrease, this condition causes students learning motivation to decrease. This study aims to measure the effectiveness of the snake and ladder which is expected to increase students learning motivation on the material interaction of living things. The research model used is the ADDIE model consisting of analysis, design, development, implementation and evaluation. Data collection techniques were carried out through material validity questionnaires, media validity questionnaires and learning motivation questionnaires. The subjects of this study were 30 students of MTs Bustanul Ulum. Based on the results of the effectiveness test, the percentage before using the media was 59.83% with sufficient motivation category, while after using the media it was 74.79% with strong motivation category. Based on the effectiveness test, it shows that snake and ladder can increase students learning motivation.

Keywords: snake and ladder, learning motivation, interaction of living things

Share Link | Plain Format | Corresponding Author (Isnanik Juni Fitriyah)


195 Science Education ABS-11

Development of Pop-up Book-Based Learning Media on Human Digestive System Materials for Class VIII SMP/MTs Students
Isnanik Juni Fitriyah*, Dewi Sri Murti, Diana Dahniat

Program Study of Science Education, Faculty of Mathematics and Science, Universitas Negeri Malang, Indonesia
*isnanik.fitriyah.fmipa[at]um.ac.id


Abstract

The material of the human digestive system is biological material that is important to study and understand because it relates to humans themselves about the digestive process and the importance of maintaining health, especially in human digestion. In studying the human digestive system, there are separate obstacles because the material for the human digestive system is less attractive to students, they consider that the material is less interesting to learn and students are relatively difficult to imagine objects from the human digestive system material. This research aims to develop a pop-up book-based learning media on the human digestive system material for class VIII SMP/MTs students that is valid and feasible to use. This type of research is research and development (R&D) using the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). The data collection technique is in the form of distributing questionnaires. The data collection instruments in this study were questionnaires for analyzing student needs, analyzing the needs of science teachers, material expert validation, media expert validation, feasibility test, and media readability test. The resulting data are qualitative and quantitative. The results of the development of learning media based on this pop-up book have fulfilled the very valid category and are very feasible to use with the results of the percentage of material validation of 95%, the percentage of media validation results being 97%, the percentage results of the feasibility test being 93%, and the percentage test results readability of 86%.

Keywords: Human Digestive System, Learning Media, Pop-up Book

Share Link | Plain Format | Corresponding Author (Isnanik Juni Fitriyah)


196 Science Education ABS-12

Development of an Integrated Science E-Module with the Theme of Global Warming Based on Problem Based Learning to Improve Understanding of Class VII Junior High School Students
Isnanik Juni Fitriyah*, Nur Izza Lutfiatuz Zulfa, Wan Eka Yusi Saputri

Program Study of Science Education, Faculty of Mathematics and Sciences, University of Malang, Indonesia
*Corresponding author: isnanik.fitriyah.fmipa[at]um.ac.id


Abstract

Improving the quality of education can be used as a means for the rapid development of science and technology. Technological advances allow the development of e-module teaching materials. The purpose of this study was to develop an e-module based on Problem Based Learning to improve students^ understanding of appropriate global warming material. This study uses a 4D model which is varied into 3D which consists of define, design, and development. The e-module was tested on a limited basis to 18 seventh grade students of SMP Darul Quran Singosari. The validity of the media obtained a percentage of 85% with a very valid category, material validity obtained a percentage of 87% with a very valid category, and the validity of the concept of truth obtained a percentage of 100% with a very valid category, the practicality test of teachers obtained a percentage of 80% with a practical category, and practicality test by students obtained a percentage of 87.8% with a very practical category. sig value. from the results of the normality test that is 0.200> 0.05, it proves that the data results before and after the test are normally distributed so that it can be continued with the t-test to determine the increase in student understanding after the implementation of learning. sig value. (2-tailed) based on the t-test that is 0.000 < 0.005 which proves that the use of e-modules in Problem Based Learning-based learning is effective in improving students^ understanding.

Keywords: Teaching materials, Problem Based Learning, increasing students^ understanding, global warming.

Share Link | Plain Format | Corresponding Author (Isnanik Juni Fitriyah)


197 Science Education ABS-13

The Effectiveness of E-LKPD with a Scientific Aprroach Using Liveworksheets in Improving Learning Outcomes on the Interaction of Living Things with the Environment
Isnanik Juni Fitriyah*, Ismi Daris Salamah, Umi Laila Ramadhan

Program Study of Science Education, Faculty of Mathematic and Sciences, Universitas Negeri Malang, Indonesia

*isnanik.fitriyah.fmipa[at]um.ac.id


Abstract

The Covid-19 pandemic has had an impact on the education sector which has resulted in the implementation of online learning activities. This requires teachers to be able to deliver material that is easily understood by students through digital media innovation in the form of an electronic student worksheet (E-LKPD) Liveworksheet by applying a scientific approach according to the 2013 curriculum. This study aims to determine theeffectiveness of the E-LKPD with a scientific approach using Liveworksheet in improving learning outcomes of the interaction of living things with the environment. The research method used is the ADDIE model consisting of analysis, design, development, implementation, evaluation and testing the effectiveness of one group pretest posttest design to 32 grade VIIA students of SMP Islam Ma^arif 2 Malang Even Semester for the 2021/2022 academic year. Data collection techniques in the form of interview sheets, validation questionnaire sheets, and learning outcomes tests. The results of the effectiveness analysis show the level of effectiveness in the moderate category based on the N-Gain value of 0.6 with an average pretest 46 and posttest 76. This indicates that the scientific approach of E-LKPD using Liveworksheets is effective in helping students improve learning outcomes of the interaction of living things with the environment.

Keywords: Electronic Student Worksheets, Scientific Approach, Liveworksheet, Interaction of Living Things, Learning Outcomes

Share Link | Plain Format | Corresponding Author (Isnanik Juni Fitriyah)


198 Science Education ABS-16

E-Poster for Static Electricity Material Based on STEM Learning in Junior High School
Rillah Ramdaniyati (a*), Fahdarina Mahligawati (b)

a) Postgraduate Program, Indraprasta PGRI University
Jl. Nangka Raya 58, Jakarta 12530, Indonesia
*rillahramdaniyati[at]gmail.com
b) Faculty of Mathematics and Natural Sciences, State University of Jakarta
Jl. Rawamangun Muka 11, Jakarta 13220, Indonesia


Abstract

This study aims to develop an e-poster for learning of static electricity in junior high schools. The e-poster used for STEM learning and equipped with a barcode to help the learning process of students independently. This research uses the ADDIE (Analyze, Design, Development, Implementation, Evaluation) method. The validity test was carried out on science teachers and junior high school students and found the results were 79% and 83%, respectively, so it was categorized as very feasible. The final result of the research shows that the e-poster fulfills the requirements as a tool and suitable for use in the static electricity learning process.

Keywords: E-poster- Static electricity- STEM learning

Share Link | Plain Format | Corresponding Author (Rillah Ramdaniyati)


199 Science Education ABS-42

How are The Efforts of Educational Practitioners to Improve The Scientific Literacy of Students in Science Learning in Indonesia? A Literature Review
Nina Khaerunnisa (a*), Insih Wilujeng (b), Zuhdan Kun Prasetyo (c)

a) b) c) Department of Science Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta
*ninakhaerunnisa.2021[at]student.uny.ac.id


Abstract

Scientific literacy is the main goal of 21st century science education. In terms of scientific literacy, the international science educator community is concerned with the skills that 21st century citizens, including Indonesia, need to have. Scientific literacy, as defined in the PISA 2018 Assessment and Analysis Framework, refers to students ability to work on scientific topics and ideas as a reflexive citizen. The Covid-19 pandemic that emerged in early 2020 made learning activities slightly changed from those previously applying online learning so that face-to-face became online learning so that educators and education practitioners need to work on how to improve students scientific literacy in science learning even in a pandemic condition. The purpose of this study is to find out how the efforts of educational practitioners to improve the scientific literacy of students in science learning in Indonesia. The research method by searching for literature in the form of international and national articles searched using Google Scholar and Sciencedirect published in the last 4 years, found 12 articles by entering the keywords scientific literacy and science learning. The results of the review on 7 international articles and 5 national articles state that the scientific literacy of students in science learning in Indonesia is still relatively low, this is also contained in the PISA 2018 results. The Covid-19 pandemic has restrained the enthusiasm and efforts of education practitioners to continue to improve scientific literacy. students in science learning. Various efforts have been made by education practitioners to improve students scientific literacy in science learning. Efforts that have been made to improve the scientific literacy of students in science learning include the application of appropriate learning methods or approaches or models, the development of effective learning tools, and the development of innovative learning media.

Keywords: Science Learning, Scientific Literacy

Share Link | Plain Format | Corresponding Author (Nina Khaerunnisa)


200 Science Education ABS-43

Development of Sparkol Videoscribe-based Learning Video on Pressure Topic to Improve Students^ Learning Achievement
Luwis Goestafo Al Gofur, Yessi Affriyenni*, Agung Mulyo Setiawan, Erti Hamimi, Muhammad Fajar Marsuki, Gareta Yoga Eka Wardani

Science Education Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang, 65145, Indonesia


Abstract

Nowadays, technology plays an important role in developing learning media including learning videos. Learning videos as one type of learning resource are quite powerful to ease the teaching load and provide alternative learning sources for students. Hence, the objective of this research is to produce a Sparkol Videoscribe-based learning video based on Science subjects, especially on the Pressure topic and its application in everyday life, that is feasible to be used in learning activities. Sparkol Videoscribe-based learning video enables an upgraded learning experience compared to common learning videos through its capability to integrate mind-maps, figures, audio, and music to actively involve and motivate students in their learning process. The research used the research and development (R&D) method with Analysis, Design, Development, Implement, and Evaluation (ADDIE) stages used as the research model. The research subjects included 25 eighth-graders from SMP Negeri 21 Malang. Qualitative and quantitative data were obtained in this study using questionnaires and pretest-posttest items. Questionnaires were used in the validation test, practicality test, and readability test while the pretest-posttest items were used in the effectiveness test. The results of validation analysis of the content aspect, media aspect, and test items are classified as very valid with each obtained scores of 79.91%, 86.45%, and 78.57% respectively. Based on the science teacher^s media practicality test and readability test conducted on 25 eighth graders, the media was classified as very feasible to use with each obtained scores of 77.22% and 83.25%, respectively. The statistical test to evaluate normality in the pre-test and post-test findings yielded a significant number of 0.166, indicating that the data was normally distributed. Furthermore, the t-test findings yielded a significant value of 0.000, implying that there was a substantial difference in student learning outcomes. Based on

Keywords: Learning Video, Sparkol Videoscribe, Pressure Topic, Learning Achievement

Share Link | Plain Format | Corresponding Author (Yessi Affriyenni)


201 Science Education ABS-47

Factors Affect Students^ Science Learning Outcomes (Case Study in 8th Grade Junior High School Students in Masohi City, Central Maluku Regency)
Izaak Hendrik Wenno(a), Hermalina Sinay(b)*, Sri Rahmadani Pulu(a), Sally Edoxiana Untajana(a), Ashari Bayu Prasada Dulhasyim(a)

aPhysics Education Program, Faculty of Teaching and Education Pattimura University, Indonesia. E-mail: wennocak[at]gmail.com Orchid No: 0000-0002-7796-2342

bBiology Education Program, Faculty of Teaching and Education Pattimura University, Indonesia. E-mail: elinasinay08[at]gmail.com Orchid No: 0000-0003-2147-7046


Abstract

Identification of the dominant factors that influence student learning outcomes, aimed to find out (diagnose) the problems faced in learning so that improvements can be made to improve student learning outcomes. The selection of the most influential factors can be done using the analysis of the principal components. The purpose of this study was to find out the main factors that influence junior high school students^ science learning outcomes in the Masohi city, Central Maluku Regency. The population in this study were 180 8th grade students at four junior high schools in Masohi city. The research instrument was in the form of a questionnaire to measure 8 variables compiled based on a Likert scale. Determination of the main factors that affect student learning outcomes was carried out using principal component analysis, with the assistance of SPSS software version 18.0. The results showed that in Public Islamic Junior High School 2 Masohi, the main factors influencing students^ science learning outcomes were interest, motivation, infrastructure, and parents, while the second factor was teachers and peers, while in public junior high school 1, 2 and 3 Masohi, it appeared that the main factors influencing students^ science learning outcomes were teachers, infrastructure, peers and parents, while the second factor was interest and motivation. Thus, it can be concluded that the main factors affecting learning outcomes in junior high schools in Masohi City are different.

Keywords: principal components, student learning outcomes

Share Link | Plain Format | Corresponding Author (Hermalina Sinay)


202 Science Education ABS-86

Implementation of REORCILEA Model in Science Learning: A Relation between Critical Thinking Skills and Communication Skills
Adilah Afikah, Jumadi Jumadi, Eli Rohaeti

Universitas Negeri Yogyakarta


Abstract

Learning in the 21st century requires students to have various skills to face new challenges and novelties. This study investigates the relationship between students^ critical thinking, oral and written communication skills through implementing the REORCILEA model in science learning. This research is concerned with determining whether students with good critical thinking skills have better oral and written communication skills. This research was a descriptive quantitative with a sample of 49 junior high school students in class IX. Observation sheets and student activity sheets became instruments in this study. The data were about critical thinking skills and oral and written communication skills that were gathered during learning, presentation, and on student activity sheets. The data were analyzed using a correlation test and linear regression test. The current study^s findings revealed a significant effect between critical thinking skills and written communication skills. However, there is no significant effect between critical thinking and oral communication skills and between oral and written communication skills. Students with good critical thinking skills can better express their thoughts in written form than in oral form, and students with good writing skills do not always have good speaking skills.

Keywords: REORCILEA Model, Critical Thinking Skills, Oral Communication Skills, Written Communication Skills

Share Link | Plain Format | Corresponding Author (Adilah Afikah)


203 Science Education ABS-87

Information Literacy Skill Profile of Pre-Service Teacher Through Mathematics, Science, Technology & Engineering Application (A-MSTR) Course
Rival Arief Tyansha (a*), Kusnadi Kusnadi (b), Widi Purwianingsih (b)

a) Masters Program of Biology Education, Indonesia University of Education, Jl. Dr. Setiabudhi No. 229, Bandung, 40154, Indonesia
*rivalarief[at]upi.edu
b) Department of Biology Education, Science Education, Indonesia University of Education, Jl. Dr. Setiabudhi No. 229, Bandung, 40154, Indonesia


Abstract

Currently, information literacy is an important component in higher education. However, it is often not strategically prioritizing the development of information literacy skills The purposes of this research were to identify the profile of information literacy skills through Mathematics, Science, Technology & Engineering Applications (A-MSTR) courses. The subject of this study is first year student of pre-served teacher. To reveal information literacy skill, we used used the rubric of LKM assessment modified from The Big 6 model and with the help of Turnitin. The results of this research revealed that in general, A-MSTR lecture activities can potentially bring up all aspects of information literacy skills. However, through this research, it was also revealed that the achievement of students^ information literacy skills was in the low category. Therefore, a method is needed with further research to improve students^ information literacy skills

Keywords: Information literacy skill- Pre-service teacher- Mathematics, Science, Technology & Engineering Applications (A-MSTR)

Share Link | Plain Format | Corresponding Author (Rival Arief Tyansha)


204 Science Education ABS-89

Development of Interactive Booklet as a Learning Media to Improve Students^ Learning Achievement on Human Digestive System
Naimatus Si Jamah, Yessi Affriyenni, Yayuk Mulyati, Indra Fardhani

Science Education Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5 Malang, 65145, Indonesia


Abstract

Challenges towards improving the learning experience are getting more complex because of rapid technological advancement. The advancement might be used to support creative and attractive learning experiences. The improved learning experience is expected to positively impact students^ learning achievements. The purpose of this research is to produce an interactive booklet on Human Digestive System that is feasible, practical, and effective to be used to improve student learning achievements. The research model used is the ADDIE model consisting of the Analysis, Design, Develop, Implement, and Evaluate stages. Data collection techniques include need assessment questionnaires, media expert validation questionnaires, materials, teacher and student practicality questionnaires, and learning outcomes tests. The sample of this research was 30 students of class VIII SMP Negeri 9 Malang. The results of the validity test of media experts obtained 92.59% and material experts obtained 100% which were categorized as very valid with very decent descriptions. The results of the practicality test of teachers obtained 96.25% and students^ practicality obtained 90.29% which is categorized as very practical. The results of the effectiveness test were 0.37 which was categorized as moderate. Based on the validity test, practicality test, and effectiveness test of the booklet, the Human Digestive System Material is declared feasible, practical, and effective to be used to improve student learning outcomes in science learning.

Keywords: Interactive Booklet- Learning Achievement- Human Digestive System

Share Link | Plain Format | Corresponding Author (Yessi Affriyenni)


205 Science Education ABS-108

Students^ Entry Behaviours That Correlate to Their Perception About The Constructivist Level of Science Curriculum Learning Environment
Della Amelia (a)- Rusman (b)

(a) Department of Curriculum Development, Universitas Pendidikan Indonesia.
Jalan Dr. Setiabudi No. 229, Isola, Kec. Sukasari, Kota Bandung, Jawa Barat, 40154.
*emaled.dame[at]upi.edu
(b) Department of Curriculum Development, Universitas Pendidikan Indonesia.
Jalan Dr. Setiabudi No. 229, Isola, Kec. Sukasari, Kota Bandung, Jawa Barat, 40154.


Abstract

Abstract:

This article examines students^ entry behaviours that correlate to their perceptions about the constructivist level of their learning environment in science curriculum implementation at Sekolah Penggerak. The learning environment has long been seen as a determinant factor on how someone learns, hence, it^s not surprising if learning environment becomes a crucial aspect in the educational transformation agenda initiated by Sekolah Penggerak Program. A total of 235 students from 3 Sekolah Penggerak located in the city of Bandung were involved as the research subject. The quantitative method with survey technique was utilised to collect data in this study. Quantitative data was collected through the Constructivist Learning Environment Indicator questionnaire which consists of fifty behavioural descriptions. Research findings indicated that there was no significant difference on students^ perception regarding the constructivist level of their learning environment in science curriculum implementation. A significant difference of students^ perception regarding the constructivist level of their learning environment lies in students^ entry behaviour related to their interest in science lessons as well as their desire for a career in a science field.

Keywords: Students^ Entry Behaviours, Learning Environment, Science Curriculum

Share Link | Plain Format | Corresponding Author (Della Amelia)


206 Science Education ABS-133

Teacher Readiness on Promoting Merdeka Curriculum Considering Experience on Implementing Science Process Skill and Scientific Literacy Learning
Yusran Khery1a, Sukainil Ahzan2, Ismail Efendi3, Baiq Asma Nufida1, I Wayan Dasna4, Fourin Indhira Megapratiwi5,6, Lilis Cahayani1, Nadia Febriani1

1 Chemistry Department, Universitas Pendidikan Mandalika, Jalan Pemuda 59 A, Mataram, Indonesia
2 Physics Department, Universitas Pendidikan Mandalika, Jalan Pemuda 59 A, Mataram, Indonesia
3 Biology Department, Universitas Pendidikan Mandalika, Jalan Pemuda 59 A, Mataram, Indonesia
4 Universitas Negeri Malang, Jalan Semarang 5 Malang 6514.
5 MGMP IPA Kabupaten Lombok Barat
6 SMPN 4 Gerung, Jl. Jenderal Sudirman, Dasan Geres, Kec. Gerung, Kabupaten Lombok Barat, Nusa Tenggara Bar. 83363


Abstract

The purpose of this study was to evaluate the readiness of science teachers in West Lombok Regency to apply the Merdeka Curriculum and to describe their experiences in implementing learning oriented to the development of process skills and scientific literacy in the classroom. This research was carried out using an ex post facto approach. This study involved 24 science teachers and 256 students consisting of 93 seventh grade students, 108 eighth grade students and 64 ninth grade students as respondents spread across 10 State Junior High Schools in West Lombok Regency in the academic year 2021-2022 which was collected by using a proportional random sampling. The data were obtained using three questionnaires, namely a questionnaire on teacher readiness to apply Independent Learning which was distributed to teachers, a questionnaire on the application of Science Process Skills learning and a questionnaire on the application of scientific literacy learning, each distributed to both teachers and students. Data were analyzed descriptively with percentage and category techniques. The results showed that the readiness of junior high school science teachers in West Lombok Regency to apply the Merdeka curriculum was in fair category with an average score of 50.08. Science teachers who have participated in the Guru Penggerak program have better readiness than those who are not with average score 66,68 and 46.28, respectively. The teachers considered that they had good experience on implemented the science process skills learning, while the students considered it fair with an average score of 73.33 and 59.26, respectively. The teacher^s response to how well they had applied scientific learning in the classroom was higher than the students with an average score of 65.88 and 60.97 in the good category, respectively. It appears that the teacher^s experience in applying science process skills and scientific literacy learning play role to readiness to apply the Merdeka curriculum.

Keywords: Merdeka Curriculum, Science Process Skill, Scientific Literacy

Share Link | Plain Format | Corresponding Author (Yusran Khery)


207 Science Education ABS-135

Integrated Science Learning Toward Local Potential In The Process Of Making Madura Fish Paste
Wiwin Puspita Hadi and Kholilur Rahman

Science Education Study Program, Education Faculty, University of Trunojoyo Madura
MTs Nasyiatul Ulum, Pamekasan


Abstract

Fish paste is one of the local potentials in Madura. This study aims to analyze the process of making Madura fish paste scientifically and correlate with science concepts so that it becomes an integrated science learning resource with local potential. This study used a descriptive qualitative approach. Data was collected by observation, interviews, documentation, and literature study. The research focused on the process of making fish paste which is integrated to the science concepts. Furthermore, the research data were analyzed, verified, and constructed to obtain meaningful findings. All in all, it can be concluded that from the process of making the fish paste, there are five science concepts that can be used as references in science learning process

Keywords: integrated science, local potential, fish paste, madura

Share Link | Plain Format | Corresponding Author (Wiwin Puspita Hadi)


208 Science Education ABS-145

A Systematic Review: The Problems of the Science Learning Process in Local Wisdom Context
(a*)Ida Bagus Ari Arjaya, (b) I Wayan Subagia, (b) I Wayan Redhana, (a) I Made Surya Hermawan

(a) Biology Education Study Program, Mahasaraswati Denpasar University
Kamboja Street, No 11A Denpasar, Bali
*ariarjaya[at]unmas.ac.id
(b) Chemistry Education Study Program, Ganesha University of Education
Singaraja, Bali, Indonesia


Abstract

In the learning process, local wisdom becomes a very important context to make it easier for students to learn according to their immediate environment. This research is classified as a Systematic Literature Review (SLR) research which aims to analyze: 1) Problematics of science learning in the context of local wisdom related to classroom management (classroom management), 2) Problematics of the science learning process in the context of local wisdom related to learning tools and infrastructure, 3) Problematics of the science learning process in the context of local wisdom (local wisdom) related to student competence. The article was studied using PRISMA technique with a time interval from 2017-2022. The results showed that: 1) Problems of the science learning process in the context of local wisdom include the perception or views of teachers in the classroom, student discipline, meaningful inquiry activities, learning interactions, and student self-efficacy, 2) Problems that occur in the context of local wisdom related to science learning tools, namely related to module problems and teaching materials that are still limited, learning media used, 3) The Problematics of the science learning process related to student competence includes problems of attitude and character development, development of thinking ability, student ability in reasoning and higher level thinking, as well as the difficulty of teachers in integrating local wisdmaterials that are still limited, learning media used, 3) The Problematics of the science learning process related to student competence includes problems of attitude and character development, development of thinking ability, student ability in reasoning and higher level thinking, as well as the difficulty of teachers in integrating local wisdom material in accordance with expected student competencies. Further study of the role of local wisdom in the learning process that supports hearts-on, hands-on, and minds-on activity is needed.

Keywords: Problems of Science Learning Process- PRISMA- Systematic Literature Review (SLR)- Context of Local Wisdom- Hearts on Activity

Share Link | Plain Format | Corresponding Author (Ida Bagus Ari Arjaya)


209 Science Education ABS-173

Evaluating Students Science Process Skills in Cognitive Domain Framework
Erni Yulianti, Agnes Yuni Pujiastuti, Shintia Ani Fatimatus Zahro, Nurul Hidayat

1)Study Program of Science Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, Indonesia
2)Public Senior High School 1 Malang, Malang, Indonesia
3)Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, Indonesia


Abstract

Living in the 21st century is not easy. This is due to the ^flood^ of information is now accessible everywhere. The next generation must, therefore, be able scientifically literate. Responding to this issue, the orientation of schooling nowadays must ensure students to think. In science education context, scientific process skills are important for students. From the scholarly literatures search engine, we can find numerous reports about science process skills. However, evaluating scientific process skills through an online test with proper theoretical framework is rarely reported. Therefore, this study aims to fill the gap by making the use of cognitive domain framework. We have developed open-ended test to measure students^ science process skills. The instruments had met the criteria of content and construct validities. Prior to implementation, the instrument was launched for pilot testing and met the criteria of reliability. Furthermore, 54 students from some junior high schools in Kediri District, Indonesia were involved in this study. The percentages of male and female students were 35.8% and 64.2%, respectively. In brief, we found that their basic and integrated science process skills tended in low levels. In addition, the role of gender on students^ science process skills was also discussed in this present study.

Keywords: science process skills, cognitive domain, 21st century skills, science education

Share Link | Plain Format | Corresponding Author (Erni Yulianti)


210 Science Education ABS-222

Development of Scientific Literacy-based Assessments in Energy and Change of Energy in Daily Life Topic
Safwatun Nida- Luqmanul Hakiim

Prodi Pendidikan IPA UM


Abstract

The purpose of the research is to describe the development of scientific literacy-based assessment of energy materials, produce a proper assessment, and determine the student^s scientific literacy profile. The type of research used is R&D with a 4D model. The types of data used are quantitative and qualitative. Material and media validation was 91.3% and 87.5% respectively, which were classified as very valid. The teacher^s practicality test was found to be 93.8% which was classified as very practical. As many as 27 valid and reliable questions were developed. The practicality test of students was found to be 80.0% which was quite practical. The scientific literacy profile of competence to explain phenomena scientifically, evaluate and design scientific investigations, and interpret data and evidence scientifically were 51.5%, 46.7%, and 48.9% which are classified as low.

Keywords: scientific literacy competencies, assessment

Share Link | Plain Format | Corresponding Author (Safwatun Nida)


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