云南化工2024，Vol.51Issue(8)：192-197,6.DOI:10.3969/j.issn.1004-275X.2024.08.46
基于三重表征的离子反应教学设计
Instructional Design of Ionic Reactions Based on Triple Characterization
杨祖华 1沈芳怡 1唐诗瑾 1赵焱 1晏瑾1
作者信息
- 1. 云南师范大学 化学化工学院,云南 昆明 650500
- 折叠
摘要
Abstract
As a key chemical concept,ionic reaction marks the starting point of high school chemistry to understand the substances and their changes in aqueous solutions from a microscopic perspective.In this paper,ionic reaction is taken as an example,and the teaching design of ion-ic reaction is carried out with"knowledge of ionization and ionic reaction"as the carrier.By creating real and effective scenarios,students can intuitively experience macroscopic phenomena,explain the transformation of acids,alkalis and salts in aqueous solutions and the changes of parti-cles from a microscopic perspective,further analyze the nature and conditions of ionic reactions,and finally characterize the whole process in the form of symbols.We establish the"macro-micro-symbolic"triple representation thinking to effectively improve the core literacy.关键词
离子反应/三重表征/教学设计Key words
Ionic Reactions/Triple Characterization/Instructional Design分类
社会科学引用本文复制引用
杨祖华,沈芳怡,唐诗瑾,赵焱,晏瑾..基于三重表征的离子反应教学设计[J].云南化工,2024,51(8):192-197,6.
