Pengembangan Perangkat Pembelajaran Fisika Berdasarkan Model Problem Posing B…

This study aims to determine the validity of the design of physics learning devices based on the model of problems posing based on the 2013 curriculum on class XI grade wave materials developed. The type of research used is Research and Development (R & D) with 4D model covering define, design, develop and disseminate stage. In this research is done until develop stage. Data collection was done…