Development of Stream-Based Teaching Materials in Training Students’ Process Skills Through Science Project Activities

---Science process skills become basic skills in solving problems and making responsible decisions. These skills are very necessary for students to live in the present and future.This study aims to create and apply teaching materials based on Project Based Learning (PjBL) model STREAM-based (Science, Technology, Religion, Engineering, Art, and Mathematic) approach in order to improve students’ science process skills.This research uses Research and Development (R&D) method as well as one-group pretest-posttest design. As research subjects were 3 primary schools in the city of Banjarmasin. Based on the results of this study it turns out that teaching materials developed were feasible to use, namely 89% (very feasible) so that it can improve students' science process skills with N-Gain of 0.71 (high). The results of the student response questionnaire after using the teaching materials developed were 87% (very feasible). Teaching materials developed makes students to use their thoughts, reason, and actions efficiently and effectively to achieve certain results, including creativity.