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2024, Vol. 45(3): 10-18    DOI: 10.13884/j.1003-3807hxjy.2022060101
Learning Progressions of Understanding Big Ideas of “Matter” for Students in Compulsory Education
LI Xiao-Feng1**, LIANG Shan-Shan1, ZHENG Chang-Long2
1. Department of Early Childhood Development, Chongqing Preschool Education College, Chongqing 404047, China;
2. Institute of Chemical Education, Northeast Normal University, Changchun 130024, China
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