PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERMUATAN OPEN-ENDED PROBLEM PADA PEMBELAJARAN MATEMATIKA KELAS V SISWA SEKOLAH DASAR

Abstract

Mathematics learning in fifth-grade elementary school still faces challenges, namely low critical and creative thinking skills in students, caused by the use of teaching materials that are not varied and not relevant to real-life contexts. This study aims to develop open-ended problem-based Student Worksheets (LKPD) for mathematics learning on whole numbers in fifth-grade elementary school. This study used the Research and Development (R&D) method with the Borg & Gall model, modified by Sugiyono into seven steps. Validation results from material, media, and language experts indicate that the developed LKPD falls into the "very feasible" category, with an average validation score of 95%. A limited trial with 10 fifth-grade students resulted in a feasibility rating of 91%, also categorized as very feasible. The results of this study indicate that the use of open-ended problem-based LKPD contributes positively and effectively to stimulating students' open-minded thinking and creativity.