Pengembangan Media Pembelajaran Berbantuan Scratch melalui Pendekatan Pembelajaran Mendalam Materi Kesebangunan dan Kekongruenan Fase D

Abstract

Recent technological advances have not been optimally or innovatively utilized in mathematics classes, resulting in less engaging and textbook-dominated learning, which reduces student engagement. This study aims to develop a Scratch-based learning medium on the topic of similarity and congruence using a Problem-Based Learning (PBL) approach to help students understand, identify, and solve contextual problems related to geometric shapes, specifically rectangles and triangles, according to the problem-solving stages.This study employed a Research and Development (R&D) method with a 4D model, consisting of the stages of Defining, Designing, Developing, and Disseminating. The subjects were grade VII-A students at SMPN 1 Yosowilangun. The developed medium included material presentations, example problems with solution steps, student activity assignments, and a five-question quiz.The medium was validated by three experts, with an average score of 3.78 for the learning medium and 3.80 for the user guide, both categorized as very valid. Teacher and student responses showed a practicality score of 88.38%, reflecting high practicality. An N-Gain score of 0.80 from the pre- and post-test results indicated high effectiveness.These findings indicate that the Scratch-assisted learning media meets the criteria for validity, practicality, and effectiveness and is suitable for supporting students in understanding and solving contextual problems about similarity and congruence.