R. Cahyaningrum, A. Hidayat, Sutopo
We have developed three sets of contrasting-cases problems as learning material to improve students' conceptual understanding on magnetism. The contrasting-cases problems consisted of several different problems with the same physic idea. This paper reports the effectiveness of the learning material drawn from a quasi-experiment, one group of pre-test post-test design. The subject consisted of 24 undergraduate students of physics education enrolling electromagnetism course in the State University of Malang. The results showed that the contrasting-cases problems effectively improved students' understanding with very high d-effect size (2.12). However, some sets of contrasting-cases problems need to be improved. © 2018 Published under licence by IOP Publishing Ltd.
Graduate Program of Physics Education, State University of Malang, 5 Semarang Street, Malang, Indonesia; Department of Physics, Faculty of Mathematics Natural Sciences, State University of Malang, 5 Semarang Street, Malang, Indonesia
