Pengembangan Perangkat Pembelajaran Matematika Menggunakan Model Discovery Le…

This research to produce mathematical learning devices using discovery learning model on Transformation material of class IX. The model research used is 4-D that consist of define, design, develop, and disseminate. The research instrument used is validity device and practicality device. The validity device is a validation sheets to assess the validity learning devices form of syllabus, lesson p…