EFFECTIVENESS OF PROBLEM-BASED LEARNING MODEL ON MATERIAL FLAT SIDE GEOMETRY OF STUDENTS’ LEARNING OUTCOMES OF CLASS VIII MTS AN-NUR PALANGKA RAYA

Abstract

This study aimed to determine the effectiveness of problem-based learning model on ??the material of flat side geometry on the learning outcomes of Class VIII students of MTs An-Nur Palangka Raya.This type of research is quantitative with quasi-experimental methods and one-group pre-test-post-test research design. The population in this study were all students of class VIII MTs An-Nur Palangka Raya of 77 people. From this population, random cluster sampling was chosen. Therefore 26 students of Class VIII-C were selected as the experimental class. The instruments of the data collection in this study were pre-test and post-test. The hypothesis of this study was tested using one-sample t-test. The results of the study indicate an average pretest ( )  of 23.61 and an average posttest ( )  of 46.30 and the average difference ( )   is 22.69. Before analyzing the data, the normality of  data is tested first. The normality test indicates = 2.168 and = 9,488. Because  <  and   follows the normal distribution. The results of the t test show the value of t_count = 1.92 and t_table = 1.708 at degrees of freedom (db) = n - 1 = 25 and the error level ? = 5% is obtained. Because t_count > t_table, then H₀ is rejected and  is accepted. Therefore, it can be concluded that the PBL model is effective in improving students’ learning outcomes in the material of flat side geometry in class VIII MTs An-Nur Palangka Raya.