Asia-Pacific Forum on Science Learning and Teaching, cilt.16, sa.1, 2015 (Scopus)
Geometric optics is one of the difficult topics for students within physics discipline. Students learn better via student-centered active learning environments than the teacher-centered learning environments. So this study aimed to present a guide for middle school teachers to teach lenses in geometric optics via active learning environment including hands-on activities. Teachers and students' views were taken about the activities via opinion form. The results showed that teachers and students found the activities instructive, motivating and interesting.