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三年级数学(北京版)认识分数第一课时

视频地址：https://video.cache.bdschool.cn/vd/3429365e87b1b7a5296137ea231f2c00.mp4
附件：0609三年级数学（北京版）-认识分数第一课时-1教案.docx
附件：0609三年级数学（北京版）-认识分数第一课时-2PPT课件.pdf
附件：0609三年级数学（北京版）-认识分数第一课时-3学习任务单.docx

16 views Jul 15, 2021

三年级数学(人教版)认识面积单位三年级数学(人教版)面积单位间的进率

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