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五年级数学(北京版)-三角形三边关系

视频地址：https://video.cache.bdschool.cn/vd/cc86c6f6c179fbb543432a8e58b7f19e.mp4
附件： 1013五年级【数学(北京版)】三角形三边关系-1教学设计.docx
附件： 1013五年级【数学(北京版)】三角形三边关系-2课件.pdf
附件： 1013五年级【数学(北京版)】三角形三边关系-3学习任务单.docx
附件： 1013五年级【数学(北京版)】三角形三边关系-4课后练习.docx

18 views Jul 15, 2021

五年级数学(人教版)-用计算器探索规律五年级数学(北京版)-三角形的认识

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