PENGEMBANGAN BAHAN AJAR REALISTIC MATHEMATIC EDUCATION PADA MATERI TRANSFORMASI GEOMETRI BERBASIS WEBSITE

Abstract

This research aims to determine the development results of realistic mathematics education teaching materials on website-based geometry transformation material. The method used in this research is research and development (R&D) using the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). This research involved 14 validators to assess the validity of the developed realistic mathematics education teaching materials using validation questionnaires, including material expert and media expert validation questionnaires. The implementation stage of the trial of website-based realistic mathematics education teaching materials involved 32 students at SMA N 1 Kedungwuni which aims to assess practicality using student response questionnaires. The results of this research are the product of realistic mathematics education teaching materials on website-based geometry transformation material to improve students' mathematical problem-solving abilities which can be accessed through the link https://t-geo.vercel.app/ based on the assessment of 14 validators with an average of 4.28 with a valid assessment classification, while based on the results of student responses, an average assessment value of 3.89 was obtained with a good assessment classification. Thus, it can be concluded that realistic mathematics education teaching materials on website-based geometry transformation material are valid and practical.