Enhancing Mathematics Achievement with Problem-Based Learning: A Classroom Action Research
Abstract
This research was motivated by the low mathematics learning outcomes of students in class VII-1 SMPN 19 Pekanbaru, which was indicated by the achievement of Learning Objective Achievement Criteria (KKTP) of only 8 out of 36 students. The purpose of this study was to increase learning outcomes and improve the learning process of mathematics through the application of the Problem-Based Learning (PBL) model. This research is a Classroom Action Research (PTK) carried out in two cycles, each consisting of planning, implementation, observation, and reflection stages. The research subjects were 36 students with heterogeneous ability levels. The research instruments included learning tools (ATP and teaching modules) as well as observation sheets of teacher activity, students' activity, and learning outcome tests. The results showed an increase in students' activity in the learning process. Students were more active, able to work together in groups, and able to build their own knowledge meaningfully. The percentage of students who reached KKTP increased from the base score of 38.88% to 52.77% in cycle I, and it increased again to 80.55% in cycle II. Based on these data, it can be concluded that the application of the Problem-Based Learning model is effective in improving the learning process and increasing mathematics learning outcomes.
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