《認(rèn)識(shí)時(shí)間》PPT.ppt

1、第七單元 認(rèn)識(shí)時(shí)間,人教版小學(xué)數(shù)學(xué)二年級(jí)上冊(cè),教學(xué)： 1、認(rèn)識(shí)時(shí)和分，知道1時(shí)=60分； 2、認(rèn)識(shí)時(shí)間用幾時(shí)幾分表示時(shí)間； 3、解決與時(shí)間有關(guān)的簡(jiǎn)單的實(shí)際問(wèn)題。,3時(shí),300,復(fù)習(xí),1,上課。,1,2,3,4,5,7,6,8,11,12,10,9,12,1,2,3,4,5,7,6,8,11,12,10,9,( ),( ),5,10,15,1,2,3,4,5,7,6,8,11,12,10,9,5,10,25,30,20,15,60,35,40,45,50,55,12,60,5,1,2,3,4,5,7,6,8,11,12,10,9,1時(shí)=60分,1,2,3,4,5,7,6,8,11,12,10,9

2、,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,11,12,10,1,3,4,5,6,9,8,7,5,9時(shí) 5分,9:05,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,6時(shí)25分,6:25,9時(shí)15分 9：15,11時(shí)55分 11：55,認(rèn)一認(rèn),考考你,相信你一定行!,3：10,7：15,1：20,2：40,10：45,5：25,6：50,8：55,9時(shí)30分,9：30,6時(shí)40分,6：40,8時(shí)35分,8：35,鐘面上有,個(gè)大

3、格，,個(gè)小格。,時(shí)針走個(gè)大格是,分針走個(gè)小格是,時(shí)針走個(gè)大格，分針正好走,走大格是,時(shí)。,分，,圈，,分。,是,分。,12,60,1,1,5,1,60,=,分針走一圈，時(shí)針走一個(gè)大格。 1時(shí)=60分,855,715,120,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開(kāi)始數(shù)。,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開(kāi)始數(shù)。,4時(shí) 5分,4:05,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開(kāi)始數(shù)。,4時(shí)30分或4時(shí)半,4:30,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開(kāi)始數(shù)。,4時(shí)45分,4:45,3,明明9:00做完作業(yè)后去踢球，10:30還要去看木偶劇，他可能在哪個(gè)時(shí)