Pengembangan Perangkat Pembelajaran Trigonometri Berbasis Strategi Pembelajaran Inkuiri Melalui Model Pembelajaran Kooperatif Tipe STAD

The aim of this study is to produce an inquiry model-based trigonometry teaching kit using STAD method of cooperative learning which is valid, practical, and effective in terms of students\u27 mathematics achievement and communication skills.This is a research and development study (R & D), which consisted of a 4-D development model by Thiangarajan, Semmel and Semmel. The development process started with front-end analysis, learner analysis, task analysis, concept analysis, specifying of objectives analysis, media selection, format selection, product design, validators\u27 and practitioners\u27 evaluations, small scale try-out, and the field test. There were a total of 67 subjects used for the study which consisted of nine students for the small try-out and 58 students for the field test. The subjects were year 10 students of Bernas Senior High School in the region of Pelalawan, Riau. The results reveal that the developed product is valid, practical, and effective in terms of students\u27 mathematics achievement and communication skills to be used as a learning resource