THE EFFECTIVENESS OF PROBLEM BASED LEARNING ON CONCEPTUAL UNDERSTANDING ABILITIES

Abstract

This research aims to determine the effectiveness of the Problem Based Learning (PBL) model compared to the conventional model on students' conceptual understanding of probability at SMA Negeri 1 Pangkah, Tegal Regency. The research uses a quantitative approach with an experimental method, applying a True Experimental Design in the form of a Pretest-Posttest Control Group Design. The population of this study includes all tenth-grade students at SMA Negeri 1 Pangkah, with samples selected using purposive sampling technique. Data were collected using test methods, consisting of pretests and posttests. The results indicate that students taught using PBL have better conceptual understanding abilities than those taught using the conventional model. Therefore, it can be concluded that the PBL model is effective in enhancing students' conceptual understanding in the probability topic at SMA Negeri 1 Pangkah. The study recommends that students utilize the PBL model to develop their conceptual understanding in mathematics, and that mathematics teachers implement the PBL model in their teaching to improve students' conceptual understanding.