Implement “Evidence Reasoning and Model Cognition” Core Literacy Based on Digital Experiments:Teaching Application of Extensibility Exploring the Conditions of Double Decomposition Ion Reaction
HUANG Yu-Zhan1*, CAI Li-Mei2, QIAN Yang-Yi3
1. Senior High School Department of Shenzhen Experimental School, Shenzhen 518000, China;
2. Shenzhen Senior High School, Shenzhen 518000,China;
3. Institute of Chemistry Teaching and Resources, South China Normal University, Guangzhou 510006, China
Abstract In this work, we sought to mix CH3COONH4 solution with distilled water, NaCl, HCl and NaOH solution at room temperature respectively and used digital conductivity sensor to measure the conductivity changes of them. Utilized the experimental data and images as evidence so as to reason out the essence and occurrence conditions of some ion reactions in order to promote students' understanding of the connotation of ion reaction and implement the core literacy dimension of “evidence reasoning and model cognition”. This research is to supplement and expand the content of the textbook, and provide a reference for teachers to expand the teaching practice of ion reaction.
HUANG Yu-Zhan, CAI Li-Mei, QIAN Yang-Yi. Implement “Evidence Reasoning and Model Cognition” Core Literacy Based on Digital Experiments:Teaching Application of Extensibility Exploring the Conditions of Double Decomposition Ion Reaction[J]. Chinese Journal of Chemical Education, 2021, 42(15): 51-57.
