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Vinko, Luka; Delaney, Seamus; Devetak, Iztok – Center for Educational Policy Studies Journal, 2020
Chemistry is an experimental discipline that uses experimentation as one of its most important research methods. Laboratory work and other practical work are therefore also essential in chemistry lessons. Chemistry demonstrations are used by teachers as an educational approach that can increase students' interest in chemistry and motivate them to…
Descriptors: Teacher Attitudes, Instructional Effectiveness, Chemistry, Science Instruction
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Ye, Jianqiang; Lu, Shanshan; Bi, Hualin – Chemistry Education Research and Practice, 2019
This study uses graphs of conductivity measured by a microcomputer-based laboratory (MBL) to promote students' macro, micro, and symbolic representations when learning about net ionic reactions (NIR). A total of 54 students, aged 14-15 years old participated in this research, and were randomly divided into an experimental group (N = 27) and a…
Descriptors: Science Instruction, Science Laboratories, Scientific Concepts, Concept Formation