Abstract This article takes the teaching of the concept of chemical reaction limits as an example,and under the guidance of the instructional theory of constructivism,uses hand-held technology digital experiments to carry out constructivist teaching. Based on the important role of the ocean in environmental protection,a running-through situation is created,and PDE teaching strategy is adopted to guide students to construct the core concepts of chemical reaction limit and chemical equilibrium state through qualitative observation and quantitative data analysis. Teaching practice has shown that this model effectively promotes students’ understanding and transfer of concepts,providing an operable path for the teaching of abstract chemical concepts.
ZENG Xing, QIAN Yang-Yi, LIN Xian, CHEN Rui-Tai, YANG Zi-Ling, CHEN Shu-Yi. Constructive Teaching of Scientific Concept Based on Hand-Held Technology Digital Experiment: Chemical Reaction Limit[J]. Chinese Journal of Chemical Education, 2026, 47(13): 50-57.
