Abstract

Mathematical concepts cannot be separated from real context that we face daily. Therefore, mathematics classroom should involve application of mathematical concepts in solving real-life problems. However, this practices generally only prioritizes on process of mathematizing real-life problems into mathematical form. This makes students experience difficulties in understanding and applying mathematical concepts to real-life. One learning approach that facilitates the use of real-life contexts in learning is Realistic-Mathematics-Education (RME). Apart from that, learning can be assisted using learning media. Therefore, this study aims to develop learning media in the form of an electronic booklet (e-booklet) for learning probability at 8th grade. This study employs Research and Development method by applying ADDIE model. The results show that the E-Booklet received an expert assessment in the Very Valid category (87%). Meanwhile, the assessment on the media aspect obtained a score of 85.5% in the Very Valid category. The results of filling out the student response questionnaire obtained an average of 80.12% and were in the practical category. The N-Gain Pre-Test and Post-Test results show that the e-booklet obtains 82% which is in effective category. This shows that the e-booklet is effective in supporting students' understanding the mathematics concepts.