Investigating the impact of three levels of representation-based visual media on students’ mental models

Abstract

Abstract This study examines the effect of visual media on students’ mental models regarding battery functions and electrical resistance concepts. The study presents a novel visual media approach consisting of phenomena videos, dynamic analogies, and microscopic models. The development of the visual media followed the ADDIE model. The research subjects were 25 12th-grade students from a private senior high school in Bandung, West Java. Students’ mental models were assessed using open-ended test that examined four concepts: (1) electromotive force (EMF) in batteries; (2) electrical resistance; (3) resistors in series; and (4) resistors in parallel. The test were administered as both pre-tests and post-tests.The pre-test results revealed that the majority of students had initial mental models regarding battery functions and electrical resistance concepts. By the end of the study, most students had developed synthetic mental models. However, the majority successfully achieved scientific mental models concerning electrical resistance concepts. In other concepts, only a few students achieved scientific mental models. Overall, the visual media had a significant positive effect on students’ mental models, with corrections observed in 92% of students for EMF in batteries, 96% for electrical resistance, 80% for resistors in series, and 84% for resistors in parallel.These findings encourage physics teachers and researchers to develop innovative visual media focused on correcting students’ mental models in scientific concept learning.