Abstract This paper introduces the design idea of blended teaching of “chemical properties of acetylene”, which mainly involves the following aspects: (1) through grouping experiments in class, it is found that the structure and properties of acetylene and ethylene are similar, which enriches the sensitive cognition of acetylene properties, and it is also found that “acetylene can not make acidic K2Cr2O7 solution fade”;(2) starting from trying to explain the phenomenon, the differences of properties and structures between acetylene and ethylene were discussed from the perspectives of bond energy, addition ratio and main chain structure after polymerization, and a cognitive model of the relationship between functional groups and properties of organic compounds was established;(3)using the model to explain the structure, properties and application of “conductive polymer” and “AIE aggregation induced luminescent material”, the understanding and construction of cognitive model are improved.
WANG Tao. Enhancing Core Literacy and Appreciating Scientific Value in Teaching of Organic Chemistry in Senior High School: Chemical Properties of Acetylene[J]. Chinese Journal of Chemical Education, 2022, 43(17): 62-72.