Application of Problem Based Learning (PBL) Models to Improve Critical Thinking Ability and Student Mathematics Learning Outcomes Grade 5 SDN Pledokan Kab. Semarang

Abstract

This study aims to improve critical thinking skills and mathematics learning outcomes of grade 5 students of SDN Pledokan District. Semarang through the Problem Based Learning (PBL) model. This research is a classroom action research with 2 learning cycles. Data collection was carried out using questionnaire critical thinking instruments and test questions for student learning outcomes in mathematics. The data analysis technique used is comparative descriptive analysis pre cycle, cycle I and cycle II. The results of the research resulted: (1) there was an increase in the ability of students from pre-cycle, cycle I and cycle II. In the pre-cycle condition of students' critical thinking skills in the high category 18.75%, the medium category 37.5%, and the low low category 43.75%, in the first cycle increased in the high category 31.25%, the medium category 56, 25% and in the low category 18.75%, in the second cycle again increased to the high category 43.75%, the moderate category 50% and the low category 6.25%. Mastery learning outcomes of students in mathematics in pre-cycle reach KKM only 37%, then in the first cycle increased to 43.75% and in the second cycle again increased to 75%.