Pengaruh Model Problem Based Learning (PBL) terhadap Pemecahan Masalah pada Siswa

Abstract

This study aims to determine whether there is an effect of the problem based learning model on problem solving to improve the problem solving ability of the temperature material and its changes in the seventh grade students of SMP Kr. GKST I Tentena. This type of research is a quasi-experimental. The samples of this research were students of class VII Mawar and VII Bougenvil SMP Kr. GKST I Tentena. The sampling technique is purposive sampling. Class VII Mawar as the experimental class and class VII Bougenvil as the control class. The problem-solving test instrument is in the form of an essay test that has been validated by the validator. The results of statistical calculations from the average difference test using two-party t-test obtained –t(1 – 0.5α) <t(1 – 0.5α) (tcount = 2.7 and ttable = 2.02) at a significant level 0.05% and dk = 52, with the average score obtained for the control class pretest of 39.31, while for the experimental class of 45.17. For the posttest value for the control class is 34.61 and for the experimental class 56.72. Thus H0 is rejected and H1 is accepted, so it is said that there is an effect of the Problem Based Learning model to improve the problem-solving ability of the temperature material and its changes in class VII students of SMP Kr. GKST I Tentena