Application of Digital Experiment in Teaching of “Macro Identification and Micro Analysis”: Teaching of Weak Electrolyte
DENG Yu-Hua1, DU Li-Jun2
1. Chengdu Research Institute of Education and Science, Chengdu 610031, China; 2. Chengdu Golden Apple Jin Cheng No.1 Secondary School, Chengdu 610212, China
Abstract Based on the contents in Chemical Reaction Principle(Elective 4)textbook published by People's Education Press, this paper measured the changes of conductivity and pH in the process of infinite dilution of glacial acetic acid by digital experiment, and analyzed the ionization characteristics of weak electrolytes deeply from a microscopic view though macroscopic observation and image identification, thus broken through the cognitive boundary, that the lower the concentration of the solution, the easier it is to ionize. While stimulating students' interest and motivation in learning from the dimension of "macro-identification and micro-analysis", helped students form integrated structural knowledge of weak electrolyte and explore the logic of chemical equilibrium.
DENG Yu-Hua, DU Li-Jun. Application of Digital Experiment in Teaching of “Macro Identification and Micro Analysis”: Teaching of Weak Electrolyte[J]. , 2019, 40(21): 77-81.
