Contextual Teaching and Learning (CTL) Learning Model to Enhance Students^ Mathematical Concepts on Similarity and Congruence Selviska Pangestu, Latifah Mustofa Lestyanto
Universitas Negeri Malang
Abstract
This research was motivated by the observation of mathematical learning activities in class IX-D SMPN 19 Malang. The learning model used seems monotonous and makes students feel bored, afraid to ask questions and
express opinions, and only some students dominate learning activities. As a result, the understanding of mathematical concepts of students in class IX-D SMPN 19 Malang is very lacking. Thus, the purpose of this study is to describe the application of CTL that can improve the understanding of mathematical concepts of SMPN 19 Malang students on the subject of similarity and congruence. This study is a class action study. Thus, the steps
taken each cycle are: 1) Planning actions, 2) Implementation of actions, 3) Observation, 4) Reflection. The results of this study are to describe that the steps of the CTL learning model are: 1) Constructivism, teachers provide
contextual problems or problems occur in the student environment, 2) Questioning, teachers give students the opportunity to ask about the problems given, 3) inquiry, teachers design teaching materials that allow students to find their own concepts, 4) Learning community, teachers divide students in class into groups, 5) Modeling, the teacher directs the student to present the results of his group, 6) Reflection, teachers and students write reflections on concepts, 7) Authentic assessment, on CTL learning assessment emphasizes more on the learning process. As a result, the percentage of student learning activities and teacher teaching activities at the end of the cycle is in the high category, where the percentage of student activity is 62.6% and the percentage of teacher activity is 88% and the percentage of student concept comprehension test results is 73.33%. So that the application of CTL (Contextual Teaching and Learning) is able to improve the understanding of students^ mathematical concepts in the material of the partnership and revival of class IX-D of State Junior High School 19
Keywords: Contextual Teaching and Learning (CTL), Mathematical Concept, Similarity and Congruence
