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Download full textSopandi, Wahyu; Kadarohman, Asep; Rosbiono, Momo; Latip, Abdul; Sukardi, Rendi Restiana – International Journal of Instruction, 2018
Among three levels of chemical representation, the sub-microscopic level is the most difficult to learn by students. To solve the problem, it is assumed that the concept of the discontinuous nature of matter or particle concept should be mastered initially by students before they learn sub-microscopic representations of further chemical phenomena.…
Descriptors: Foreign Countries, Courseware, Science Instruction, Scientific Concepts
