【2020新】北師大版六年級(jí)下冊(cè)數(shù)學(xué)課件《第4課時(shí)-圖形的運(yùn)動(dòng)》

1、【2020新】北師大版六年級(jí)下冊(cè)數(shù)學(xué)課件第4課時(shí)-圖形的運(yùn)動(dòng)【2020新】北師大版六年級(jí)下冊(cè)數(shù)學(xué)課件第4課時(shí)-圖形的運(yùn)問(wèn)題導(dǎo)入我們學(xué)過(guò)哪些關(guān)于圖形的運(yùn)動(dòng)的知識(shí)？哪些運(yùn)動(dòng)不改變圖形的形狀和大?。磕男┻\(yùn)動(dòng)只改變圖形的大小，而不改變形狀？北師大版六年級(jí)數(shù)學(xué)下冊(cè)問(wèn)題導(dǎo)入我們學(xué)過(guò)哪些關(guān)于圖形的運(yùn)動(dòng)的知識(shí)？哪些運(yùn)動(dòng)不改變圖形軸對(duì)稱(chēng)平移旋轉(zhuǎn)復(fù)習(xí)探究點(diǎn)探究點(diǎn)總覽北師大版六年級(jí)數(shù)學(xué)下冊(cè)軸對(duì)稱(chēng)復(fù)習(xí)探究點(diǎn)探究點(diǎn)總覽北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總探究點(diǎn)1 軸對(duì)稱(chēng) 我們學(xué)過(guò)哪些關(guān)于圖形的運(yùn)動(dòng)的知識(shí)？哪些運(yùn)動(dòng)不改變圖形的形狀和大小？哪些運(yùn)動(dòng)只改變圖形的大小，而不改變形狀？ 重合對(duì)稱(chēng)軸北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總探究點(diǎn)1

2、 軸對(duì)稱(chēng) 我們學(xué)過(guò)哪些關(guān)于圖形的運(yùn)動(dòng)的知識(shí)知識(shí)匯總常見(jiàn)的軸對(duì)稱(chēng)圖形對(duì)稱(chēng)軸的條數(shù)：長(zhǎng)方形有()條對(duì)稱(chēng)軸，正方形有()條對(duì)稱(chēng)軸，等腰三角形有()條對(duì)稱(chēng)軸，等邊三角形有()條對(duì)稱(chēng)軸，等腰梯形有()條對(duì)稱(chēng)軸，圓有()條對(duì)稱(chēng)軸。24131無(wú)數(shù)北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總常見(jiàn)的軸對(duì)稱(chēng)圖形對(duì)稱(chēng)軸的條數(shù)：長(zhǎng)方形有()條對(duì)稱(chēng)小試牛刀（源于典中點(diǎn)）1下列圖案中，哪些是軸對(duì)稱(chēng)圖形？是的在括號(hào)里畫(huà)“”，不是的畫(huà)“”。知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)小試牛刀（源于典中點(diǎn)）1下列圖案中，哪些是軸對(duì)稱(chēng)圖形？2下面圖形各有幾條對(duì)稱(chēng)軸？請(qǐng)畫(huà)出所有的對(duì)稱(chēng)軸。(圓畫(huà)出2條即可)241無(wú)數(shù)(畫(huà)對(duì)稱(chēng)軸略)知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)

3、2下面圖形各有幾條對(duì)稱(chēng)軸？請(qǐng)畫(huà)出所有的對(duì)稱(chēng)軸。(圓畫(huà)出2條3以虛線為對(duì)稱(chēng)軸，畫(huà)出下面圖形的軸對(duì)稱(chēng)圖形。略。知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)3以虛線為對(duì)稱(chēng)軸，畫(huà)出下面圖形的軸對(duì)稱(chēng)圖形。略。知識(shí)匯總北知識(shí)匯總直線方向距離位置形狀大小探究點(diǎn)2 平移北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總直線方向距離位置形狀大小探究點(diǎn)2 平移北師大版六年4選擇。(將正確答案的字母填在括號(hào)里)(1)下面每組中的兩個(gè)圖形經(jīng)過(guò)平移后，可以互相重合的是()。B小試牛刀（源于典中點(diǎn)）知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)4選擇。(將正確答案的字母填在括號(hào)里)B小試牛刀（源于典(2)下面圖形中，不能通過(guò)基本圖形平移得到的是()。D知識(shí)匯總北師大版六

4、年級(jí)數(shù)學(xué)下冊(cè)(2)下面圖形中，不能通過(guò)基本圖形平移得到的是()。D知5按要求畫(huà)一畫(huà)。(1)把圓先向右平移4格，再向下平移3格。(2)把梯形先向上平移3格，再向左平移4格。略。知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)5按要求畫(huà)一畫(huà)。略。知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總中心方向角度位置形狀大小探究點(diǎn)3 旋轉(zhuǎn)北師大版六年級(jí)數(shù)學(xué)下冊(cè)知識(shí)匯總中心方向角度位置形狀大小探究點(diǎn)3 旋轉(zhuǎn)北師大版六年6填空。(1)如圖，由圖1到圖2，是將三角形繞點(diǎn)A()時(shí)針旋轉(zhuǎn)了()。(2)如圖，正六邊形至少要繞點(diǎn)O旋轉(zhuǎn)()度才能與原來(lái)的圖形重合。逆9060小試牛刀（源于典中點(diǎn)）知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)6填空。逆9060小試牛

5、刀（源于典中點(diǎn)）知識(shí)匯總北師大(3)從12：00到3：00，時(shí)針旋轉(zhuǎn)了()，從12：00到12：30，分針旋轉(zhuǎn)了()。(4)如圖，1 kg的物品可以使指針按順時(shí)針?lè)较蛐D(zhuǎn) ()，()的物品可以使指針按順時(shí)針?lè)较蛐D(zhuǎn)90。90180452 kg知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)(3)從12：00到3：00，時(shí)針旋轉(zhuǎn)了()，從12：7將三角形ABC繞C點(diǎn)順時(shí)針?lè)较蛐D(zhuǎn)90，畫(huà)出旋轉(zhuǎn)后的圖形。略。知識(shí)匯總北師大版六年級(jí)數(shù)學(xué)下冊(cè)7將三角形ABC繞C點(diǎn)順時(shí)針?lè)较蛐D(zhuǎn)90，畫(huà)出旋轉(zhuǎn)后的圖易錯(cuò)辨析8以虛線為對(duì)稱(chēng)軸，畫(huà)出下圖的軸對(duì)稱(chēng)圖形。略。辨析：畫(huà)圖時(shí)注意軸對(duì)稱(chēng)的特征，對(duì)稱(chēng)點(diǎn)到對(duì)稱(chēng)軸的距離相等。知識(shí)匯總易錯(cuò)辨析

6、8以虛線為對(duì)稱(chēng)軸，畫(huà)出下圖的軸對(duì)稱(chēng)圖形。略。辨析：版權(quán)申明本文部分內(nèi)容，包括文字、圖片、以及設(shè)計(jì)等在網(wǎng)上搜集整理.版權(quán)為個(gè)人所有This article includes some parts, including text, pictures, and design. Copyright is personal ownership.用戶可將本文地內(nèi)容或服務(wù)用于個(gè)人學(xué)習(xí)、研究或欣賞，以及其他非商業(yè)性或非盈利性用途，但同時(shí)應(yīng)遵守著作權(quán)法及其他相關(guān)法律地規(guī)定，不得侵犯本網(wǎng)站及相關(guān)權(quán)利人地合法權(quán)利.除此以外，將本文任何內(nèi)容或服務(wù)用于其他用途時(shí)，須征得本人及相關(guān)權(quán)利人地書(shū)面許可，并支付報(bào)酬.Users

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29、formation. It shall not misinterpret or modify the original intention of the content of this article, and shall bear legal liability such as copyright.版權(quán)申明本文部分內(nèi)容，包括文字、圖片、以及設(shè)計(jì)等在網(wǎng)上搜集整理.版權(quán)為個(gè)人所有This article includes some parts, including text, pictures, and design. Copyright is personal ownership.用戶可將本文地內(nèi)容或服務(wù)用于個(gè)人學(xué)習(xí)、研究或欣賞，以及其他非商業(yè)性或非盈利性用途，但同時(shí)應(yīng)遵守著作權(quán)法及其他相關(guān)法律地規(guī)定，不得侵犯本網(wǎng)站及相關(guān)權(quán)利人地合法權(quán)利.除此以外，將本文任何內(nèi)