PENGEMBANGAN LKPD DENGAN STRATEGI REACT MATERI KESEIMBANGAN UNTUK MELATIHKAN KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK SMA

DEVELOPMENT OF STUDENT WORK SHEET WITH REACT STRATEGY BALANCED MATERIALS TO TRAIN CRITICAL THINKING SKILLS FOR HIGH SCHOOL STUDENTS

Keywords: Student Work Sheet, REACT, Critical Thinking Skills

The purpose of this research is to develop appropriate REACT strategy worksheets to support physics learning on balance material to train high school students' critical thinking skills in terms of validity, practicality, and effectiveness. This study uses the ADDIE model (analysis, design, development, implementation and evaluation). The trial design used was one group pre-test post-test design. The developed learning tools were tested on 100 students at SMA Negeri 2 Surabaya. Data collection methods used questionnaires, observations and tests. Data analysis techniques used percentage of agreement, N-gain, Shapiro-Wilk test, Wilcoxon Signed Rank Test, paired T test, Kruskal-Wallis test and Post Hoc (Mann Whitney) test.

The results showed that the REACT strategy student work sheet was feasible (valid, practical, and effective) to be used to train students' critical thinking skills. Valid, in terms of the validity of the syllabus is 90.6%, the validity of lesson plans is 91.3%, the validity of Handouts is 88.4%, the validity of student work sheet is 86.3%, and the validity of critical thinking questions is 84.1%. Practically, in terms of the assessment of the implementation of learning has a very good category, student activities are in the very good category, learning constraints can be overcome. Effective, in terms of critical thinking skills test in the very effective category. The scores of students' critical thinking skills increased after applying student work sheet learning with the REACT strategy. The three classes gave a positive response to learning with worksheets with the REACT strategy. Therefore, in the REACT strategy student work sheet it can be concluded that the learning tools developed are feasible to use to improve students' critical thinking skills.