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This research aimed to identify types representations which can help students understanding chemistry topics, and investigate the effect of using multiple representations on developing chemistry understanding levels among chemistry department students at faculty of education. So, the instruments of research included Chemistry understanding test, and Semi structured interviews. The sample of study consisted of (N=87) 4th year chemistry department students at Faculty of Education Benhadoi:10.21608/jfeb.2020.169194 fatcat:oso5xafbxzfabb4h64cqrbqz7q