Teaching Design of Chemistry Based on the Construction and Application of Cognitive Model: Review Course of “Ion Reaction and Ion Balance in Aqueous Solution”
XIE Hong-Wei1,2, WANG Xiu-Hong1,3**, YU Zhi-Min2, CAO Yu2
1. College of Chemistry,Northeast Normal University,Changchun 130024,China;
2. The Subsidiary Experimental School of the Northeast Normal University, Changchun 130117,China;
3. Northeast Normal University Branch Center of China Basic Education Quality Monitoring Collaborative Innovation Center, Changchun 130024, China
Abstract This paper analyzes the topic content of “ion reaction and ion equilibrium in aqueous solution”, and finds that students have low level of understanding and insufficient understanding of this part of content through the pre-test.In view of this problem, in the practical teaching, by constructing the cognitive model of ion reaction and ion equilibrium in aqueous solution, we create the real problem situation, guide the students to clarify the task type, enrich the cognition angle, form the cognition thought, so as to make the students' understanding of the subject content go deeper and systematic.Through the post-test, the teaching effect is analyzed and the teaching reflection is carried out, which provides a reference for the teaching of cognitive model construction in teaching practice.
XIE Hong-Wei, WANG Xiu-Hong, YU Zhi-Min, CAO Yu. Teaching Design of Chemistry Based on the Construction and Application of Cognitive Model: Review Course of “Ion Reaction and Ion Balance in Aqueous Solution”[J]. Chinese Journal of Chemical Education, 2022, 43(3): 37-44.
