[五年級數(shù)學(xué)]五下旋轉(zhuǎn)

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1、轉(zhuǎn)桿打開轉(zhuǎn)桿打開轉(zhuǎn)桿關(guān)閉轉(zhuǎn)桿關(guān)閉 與時(shí)針旋轉(zhuǎn)方向相同的是與時(shí)針旋轉(zhuǎn)方向相同的是順時(shí)針方向順時(shí)針方向，與時(shí)針旋轉(zhuǎn)方向相反的是與時(shí)針旋轉(zhuǎn)方向相反的是逆時(shí)針方向逆時(shí)針方向。轉(zhuǎn)桿打開是轉(zhuǎn)桿打開是逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)90900 0轉(zhuǎn)桿關(guān)閉是轉(zhuǎn)桿關(guān)閉是順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)90900 0你會(huì)把下邊的三角板繞著你會(huì)把下邊的三角板繞著點(diǎn)點(diǎn)A A旋轉(zhuǎn)旋轉(zhuǎn)90900 0嗎？嗎？逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)你會(huì)把下邊的三角板繞著你會(huì)把下邊的三角板繞

2、著點(diǎn)點(diǎn)A A旋轉(zhuǎn)旋轉(zhuǎn)90900 0嗎？嗎？逆時(shí)針旋轉(zhuǎn)逆時(shí)針旋轉(zhuǎn)如何畫三角形順時(shí)針旋轉(zhuǎn)如何畫三角形順時(shí)針旋轉(zhuǎn)90900 0后的圖形？后的圖形？順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)順時(shí)針旋轉(zhuǎn)90901 1D DC C把長方形繞把長方形繞A A點(diǎn)順時(shí)針旋轉(zhuǎn)點(diǎn)順時(shí)針旋轉(zhuǎn)9090把小旗圖繞把小旗圖繞B B點(diǎn)逆時(shí)針旋轉(zhuǎn)點(diǎn)逆時(shí)針旋轉(zhuǎn)9090觀察下面觀察下面3 3組圖形，它們有什么共同的特組圖形，它們有什么共同的特點(diǎn)？

3、你能旋轉(zhuǎn)每組中的一個(gè)圖形，使每組點(diǎn)？你能旋轉(zhuǎn)每組中的一個(gè)圖形，使每組圖形都變成一個(gè)長方形嗎？圖形都變成一個(gè)長方形嗎？A AA AA A將圖形將圖形繞繞A A點(diǎn)逆時(shí)針旋轉(zhuǎn)點(diǎn)逆時(shí)針旋轉(zhuǎn)9090A AA A將圖形將圖形繞繞A A點(diǎn)順時(shí)針旋轉(zhuǎn)點(diǎn)順時(shí)針旋轉(zhuǎn)9090A AA AA A將圖形將圖形繞繞A A點(diǎn)逆時(shí)針旋轉(zhuǎn)點(diǎn)逆時(shí)針旋轉(zhuǎn)9090A AA A將圖形將圖形繞繞A A點(diǎn)順時(shí)針旋轉(zhuǎn)點(diǎn)順時(shí)針旋轉(zhuǎn)9090A A將圖形將圖形繞繞A A點(diǎn)逆時(shí)針旋轉(zhuǎn)點(diǎn)逆時(shí)針旋轉(zhuǎn)9090A AA A將圖形將圖形繞繞A A點(diǎn)逆時(shí)針旋轉(zhuǎn)點(diǎn)逆時(shí)針旋轉(zhuǎn)180180A AA A將圖形將圖形繞繞A A點(diǎn)順時(shí)針旋轉(zhuǎn)點(diǎn)順時(shí)針旋轉(zhuǎn)180180A AA A