Development of Interactive Multimedia as Support in Learning Mathematical Problem Solving for Junior High Schools

The essence of learning mathematics is the ability to solve problems. This study aims to develop appropriate interactive multimedia in the class VIII circle material, in terms of validity, practicality and effectiveness. The method used is the Research and Development (R&D) method with the ADDIE model. The test subjects were the students of State Junior High School 15 Banjarmasin. Data collection techniques used were tests and questionnaires, with data analysis techniques using descriptive statistics. The results of the research obtained interactive multimedia on circle material developed using HTML, CSS, JavaScript, Firebase Realtime Database, JSON, GeoGebra, Scratch, MathJax, and Netlify technologies. The developed multimedia is declared valid in terms of material, media, practical, and effective. Thus, this interactive multimedia is suitable for use for circle learning in class VIII.