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2026, Vol. 47(12): 27-31    DOI: 10.13884/j.1003-3807hxjy.2025070201
Hierarchical Teaching Mode Balancing Basics and Individuality:“Compulsory+Optional”Reform of Potassium Alum Preparation Experiment
WEN Zhi-Hui, FENG Zhan-Heng, REN Hong-Xia, QIU Xiao-Hang**
College of Chemistry,National Demonstration Center for Experimental Chemistry Education,Nankai University,Tianjin 300071,China
Received 2025-07-23  Revised 2025-10-13
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