Journal of research in science teaching. 1977;14(5):461-466. doi: 10.1002/tea.3660140511 Q14.52025
Strategies used by first-grade children in ordering varying numbers of objects by length and weight
一年级儿童按长度和重量订购不同数量物品的策略
DOI: 10.1002/tea.3660140511
摘要