This research aims to develop android-based interactive learning media improves the problem solving skills of high school students in understanding the concept of geometric sequences and series. This type of research is development research with qualitative approach supported by quantitative data. Methods used research and development (R&D) that adapt ADDIE model. This CERMAT learning media inn…
Hasil penelitian menunjukkan hasil yang positif, efektif serta meningkatkan minat belajar
Siswa masih mengalami kesalahan konsep , kesalahan menggunakan data, kesalahan menginterpretasi bahasa, kesalahan teknik dan kesalahan penarikan kesimpulan