结构化学之抽象物质结构“形象化”教法探讨

Discussion on Imagery Teaching Method of Abstract Material Construction in Structural Chemistry

通过提出丁二烯πMO系数比的黄金分割系数和正四面体重心规律的具体应用,用黄金分割关系求出丁二烯的πMO;用重心规律求出配位数为4的正离子与负离子的半径比。教学中如能充分运用对抽象内容“形象化”处理方法,可以更好地帮助学生理解识记物质结构所涉及的抽象内容。

This article introduces the application of imagery teaching method and golden section coefficient and center of gravity about regular tetrahedron to butadiene presents the application of π MO coefficient radio. The purpose is to calculate the butadiene＇s π MO by golden section relation and to get radio of positive and nega- tive ions, whose coordination number is 4 by regular tetrahedron. The teaching method of imagery can strengthen the students＂ understanding and memory of the structure of matter, whose content is very abstract.