Abstract On the basis of describing the evolution of the concept of activation energy, and based on the problems and difficulties in its teaching, this paper puts forward the use of teaching software to construct the knowledge model related to activation energy, taking the reaction of hydrogen with chlorine as an example, driven by the problem chain, students can actively explore and understand the concepts of elementary reaction, activated molecule, activation energy and effective collision. It is proved that this method can effectively break students' existing misconception, help students establish concepts and models related to activation energy, and then understand and explain the factors affecting the rate of chemical reaction from the perspective of energy.
YANG Guo-Zhang, TANG Hai-Xia, ZHOU Xia, RAN Ming. New Teaching Method of Activation Energy Based on Problem Driven[J]. Chinese Journal of Chemical Education, 2023, 44(11): 71-77.
