五年級(jí)數(shù)學(xué)下冊(cè)圖形的運(yùn)動(dòng)三課件

圖形的運(yùn)動(dòng)（三）1.平移2.對(duì)稱3.旋轉(zhuǎn)圖形的運(yùn)動(dòng)（三）1.平移2.對(duì)稱3.旋轉(zhuǎn)五年級(jí)數(shù)學(xué)下冊(cè)圖形的運(yùn)動(dòng)三ppt課件三、旋轉(zhuǎn)概念：物體繞著某一點(diǎn)或某條軸運(yùn)動(dòng)，就是旋轉(zhuǎn)旋轉(zhuǎn)有三要素：中心點(diǎn)方向旋轉(zhuǎn)角度三、旋轉(zhuǎn)概念：物體繞著某一點(diǎn)或某條軸運(yùn)動(dòng)，就是旋轉(zhuǎn)旋轉(zhuǎn)有三三、旋轉(zhuǎn)指針從“12”繞點(diǎn)O順時(shí)針旋轉(zhuǎn)

到1.指針從“1”繞點(diǎn)O順時(shí)針旋轉(zhuǎn)60°到

.30°3指針從“3”繞點(diǎn)O順時(shí)針旋轉(zhuǎn)

到6.指針從“6”繞點(diǎn)O順時(shí)針旋轉(zhuǎn)

到12.三、旋轉(zhuǎn)指針從“12”繞點(diǎn)O順時(shí)針旋轉(zhuǎn)三、旋轉(zhuǎn)180三、旋轉(zhuǎn)180畫出三角形AOB繞點(diǎn)O順時(shí)針旋轉(zhuǎn)90°后的圖形。畫出三角形AOB繞點(diǎn)O順時(shí)針旋轉(zhuǎn)90°后的圖形。三、旋轉(zhuǎn)風(fēng)車旋轉(zhuǎn)90°的變化秘密對(duì)應(yīng)邊的變化關(guān)系對(duì)應(yīng)點(diǎn)的變化關(guān)系三、旋轉(zhuǎn)風(fēng)車旋轉(zhuǎn)90°的變化秘密對(duì)應(yīng)邊的變化關(guān)系對(duì)應(yīng)點(diǎn)的變化三、旋轉(zhuǎn)對(duì)應(yīng)邊的變化關(guān)系三、旋轉(zhuǎn)對(duì)應(yīng)邊的變化關(guān)系三、旋轉(zhuǎn)對(duì)應(yīng)邊的變化關(guān)系三、旋轉(zhuǎn)對(duì)應(yīng)邊的變化關(guān)系三、旋轉(zhuǎn)對(duì)應(yīng)點(diǎn)的變化關(guān)系三、旋轉(zhuǎn)對(duì)應(yīng)點(diǎn)的變化關(guān)系三、旋轉(zhuǎn)利用旋轉(zhuǎn)畫一朵小花三、旋轉(zhuǎn)利用旋轉(zhuǎn)畫一朵小花三、旋轉(zhuǎn)利用旋轉(zhuǎn)畫一朵小花三、旋轉(zhuǎn)利用旋轉(zhuǎn)畫一朵小花設(shè)計(jì)欣賞對(duì)稱在平面設(shè)計(jì)的應(yīng)用對(duì)稱在廣告設(shè)計(jì)的應(yīng)用對(duì)稱在舞蹈中的應(yīng)用旋轉(zhuǎn)在視覺(jué)設(shè)計(jì)的應(yīng)用旋轉(zhuǎn)在廣告設(shè)計(jì)的應(yīng)用設(shè)計(jì)欣賞對(duì)稱在平面設(shè)計(jì)的應(yīng)用對(duì)稱在廣告設(shè)計(jì)的應(yīng)用對(duì)稱在舞蹈中對(duì)稱在建筑設(shè)計(jì)的應(yīng)用對(duì)稱在傳統(tǒng)藝術(shù)的應(yīng)用對(duì)