Pengembangan Perangkat Pembelajaran Matematika Berbasis Problem Based Learnin…

Abstract. This research to produce a product in the form mathematical learning devices using problem based learning model on sine and cosine rule material of class X SMK/MAK. The development model used is the 4-D model namely define, design, develop, and deseminate. The research instrument used is validity instrument and practicality. The validity instrument is a validation assessment sheet…