IMPLEMENTASI MODEL PROBLEM BASED LEARNING DALAM PEMBELAJARAN TEKS ARGUMENTASI UNTUK MENINGKATKAN BERPIKIR KRITIS SISWA SMAN 1 RAWAJITU SELATAN TULANG BAWANG

Abstrak

This study aims to improve students’ critical thinking skills through the implementation of the Problem Based Learning (PBL) model in argumentation text learning for Grade X students of SMAN 1 Rawajitu Selatan, Tulang Bawang. The research employed a Classroom Action Research (CAR) design conducted in two cycles, consisting of planning, action, observation, and reflection stages. The participants were Grade X students who initially demonstrated low critical thinking abilities. Data were collected through classroom observations, critical thinking tests, field notes, and documentation of students’ work. The findings indicate a significant improvement in students’ abilities to analyze problems, evaluate arguments, and construct evidence-based statements. In the first cycle, students struggled to articulate logical arguments; however, after receiving structured examples and engaging in guided group discussions, the quality of their arguments improved markedly in the second cycle. Problem Based Learning also enhanced students’ participation in discussions and their confidence in expressing opinions. Students were able to identify key issues, distinguish fact from opinion, and utilize supporting evidence effectively. This study concludes that PBL is an effective instructional model for teaching argumentation texts and significantly improves students’ critical thinking skills. Therefore, PBL is recommended as an alternative teaching strategy suitable for developing higher-order thinking skills in students.