Differences in Increasing Mathematical Critical Thinking Ability of Students Using the STAD and Jigsaw Cooperative Learning Model for Junior High School Students

Abstract

This study aims to analyze the differences in increasing mathematical critical thinking skills between students who are taught using the STAD Type Cooperative learning model and students who are taught using the Jigsaw Cooperative learning model, as well as to describe the process of solving students' answers in solving problems on mathematical critical thinking skills using the model. STAD and Jigsaw Type Cooperative learning. This research is a quasi-experimental research conducted at Al-Hikmah Private Junior High School Medan with a research sample of 64 students with 32 students in each class, VII-7 class as Experiment I class and VII-6 class as Experiment II class. The data were obtained through the KAM test and students' mathematical critical thinking skills tests. Data were analyzed by two-way ANACOVA test. Before using the two-way ANACOVA test, normality and homogeneity tests were first carried out with a significant level of 5%. Based on the results of the analysis (ANACOVA), there are differences in the improvement of mathematical critical thinking skills between students who are taught using the STAD Type Cooperative learning model and students who are taught using the Jigsaw Cooperative learning model. The magnitude of the significant value obtained from ANACOVA, namely thit > ttab = 4,360 > 1,672 and p-value/2 < í µí»¼ = 0 < 0,05, this means that H0 is rejected. Thus, students' mathematical critical thinking skills taught using the STAD Type Cooperative learning model were higher than students taught using the Jigsaw Cooperative learning model after controlling for the pretest. Then based on the description of the process of completing students' answers in solving mathematical critical thinking ability test questions, it was found that the student's answer process in the STAD Type Cooperative learning model was better than the Jigsaw Cooperative learning model.