Pengembangan Lembar Kegiatan Peserta Didik (Lkpd) Berbasis Problem Based Lear…

Abstract: This Research aims to develop Student Worksheet Based on Problem Based Learning in Hydrocarbon of Chemistry in Senior High School Subject in terms of valid based on the feasibility aspect of content, language, serve and graphic. This type of research is research and development (R and D) with reference to the development process of 4-D model. The subject of this research is student wo…