Ayu Sri Menda Br Sitepu, Karya Sinulingga, Eva Marlina Ginting
This study aims to determine the improvement of students' science process skills by using guided inquiry-based physics teaching materials. This research is a research development (Research & Development) using the Borg and Gall design. This research was conducted at the Smart Nation Private High School with a sample size of 30 students. This research was conducted until the development stage, namely expert validation. The results of the needs analysis and material analysis show that physics teaching materials are needed by teachers and students to support physics learning activities in schools. The teaching materials developed were temperature and heat teaching materials. The results of the validation of the three validators, namely material expert lecturers and media expert lecturers, show that the quality of teaching materials is in the very good category and can be used in the learning process after a long revision, besides that the students' responses to teaching materials develop in a positive category. The average result of the validation of teaching materials by material experts was 87.5%, and the average validation of media experts was 86.5% with the very good category. © Published under licence by IOP Publishing Ltd.
Department of Postgraduate Physics Education, Universitas Negeri, Medan, Indonesia; Department of Physics, Universitas Negeri Medan, Jl. William Iskandar, Ps. V, Medan, North Sumatra, 20221, Indonesia
