Promote Students’ Conceptual Recognition of Primary Battery by Hand-Held Digital Experiment: Comparison of Reaction Between Zinc-Copper-Dilute Sulfuric Acid Battery and Reaction of Zinc and Dilute Sulfuric Acid
CHEN Qiu-Ling1,2, QIAN Yang-Yi1**, MAI Yu-Hua3, QUAN Hua-Sheng4, TANG Wen-Xiu1,5
1. School of Chemistry, South China Normal University, Guangzhou 510006, China;
2. Shenzhen Baoan District Hangcheng School, Shenzhen 518126, China;
3. School of Psychology, South China Normal University, Guangzhou 510631, China;
4. Dongguan Middle School Songshan Lake School, Dongguan 523808, China;
5. Guangdong Panyu Middle School, Guangzhou 511400, China
Abstract According to the TQVC conceptual cognitive model, this paper investigated how to design hand-held digital experiment to promote students’ conceptual recognition of primary battery, taking the comparison of reaction between zinc-copper-dilute sulfuric acid battery and reaction of zinc and dilute sulfuric acid for example. The processes were followed: (1) The core concept connotation of primary battery was transformed into two measurable concept-related properties of temperature and current; (2) The temperature change and the current change of two reactions were explored by the temperature sensor and current sensor; (3) The experimental date, curves and the analysis of quadruple representation were used to obtain experimental results and evaluate the effectiveness of experimental design. The key of experimental design and the using of experimental evidence were discussed.
CHEN Qiu-Ling, QIAN Yang-Yi, MAI Yu-Hua, QUAN Hua-Sheng, TANG Wen-Xiu. Promote Students’ Conceptual Recognition of Primary Battery by Hand-Held Digital Experiment: Comparison of Reaction Between Zinc-Copper-Dilute Sulfuric Acid Battery and Reaction of Zinc and Dilute Sulfuric Acid[J]. Chinese Journal of Chemical Education, 2020, 41(1): 67-73.
