Abstract As the core paradigm for understanding the material world in chemistry,structural analysis at the atomic-molecular level forms the foundation for comprehending the properties and transformation patterns of matter.The stereochemical structure of covalent molecules/ions,as a key concept spanning secondary to university chemistry curricula,plays a pivotal role in cultivating students’ microscopic analytical abilities and constructing their chemical thinking frameworks.This study focuses on the content continuity issues between current secondary school textbooks and university curricula on this topic.Through systematic comparative analysis,it identifies teaching challenges such as fragmented theoretical models and discontinuities in cognitive pathways.To address this,this paper integrates Lewis theory,valence shell electron pair repulsion theory,hybridization theory,and molecular orbital theory to construct a progressive analytical framework:“electron pairing → spatial arrangement → orbital hybridization → delocalization effects”. By clarifying the applicability boundaries of each theory,this framework helps students smoothly adapting to the study of chemistry courses at the university level,strengthens the bridging function of freshman-level courses,and promotes seamless continuity between basic and higher chemistry education.
MI Bing-Kui, SONG Fa-Hui, WEN Li-Li, LIU Chun-Rong, YUAN Hong, PAN Fang-Fang. Integration and Reconstruction of Covalent Bond Theories for Connecting High School and University Chemistry Knowledge Systems[J]. Chinese Journal of Chemical Education, 2026, 47(6): 14-21.
