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线段的认识讲解课件

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线段 认识 讲解 课件
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Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 数 学 我爱学数学 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 观察铅笔画出的是什么 想一想这些画是由什么组成的 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 说说铅笔画出的是什么 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 我最棒 说说你看到了 什么 看动画说一说下面都做了一些什么 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 把线拉直 两手之间 的一段可以看成线段 端点端点 二 我爱学习认识新知识二 我爱学习认识新知识 这叫什么 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 二 我爱学习认识新知识二 我爱学习认识新知识 直尺 课本的每条边都可以看成 线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 说一说 还有哪些物体的 边页可以看成线段 做一做 找一张正方形纸 把它对折 说一说你看到了什么 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 你能折出比这条线段还长的折 痕吗 比这条线段短的呢 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 你能折出比这条线段短的呢 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 用直尺画线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 用直尺画线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 用直尺画线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 用直尺画线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 1 下面哪些是线段 是线段的在 里画 想想做做想想做做 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 三角形是由几条线段围成的 正方形和长方形是由几条线段围成的 五边形是由几条线段围成的 那么六条线段围成的是什么图形呢 3条 4条 5条 六边形 434 5 2 下面的图形各是由几条线段围成 填在 里 条 条条条 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 再试身手 思考 连接两点可以画几条线段 3 用直尺把两点连成一条直线 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 4 在每两点之间画一条线段 画成的是什么图形 三角形 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 5 在每两个点之间画一条线段 能画几条 一共有4条 A B C 你能数一数下面图形有几条线段吗 一共3条 思考题 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial 全课小结 通过这节课的学习 你知 道了什么 线段 两点之间一条直线叫线段 生活中还可以把一些实际物体看成线段 Five weeks of practice ended in this way and my feelings can only be summed up in eight words although hard but very substantial
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