1、認(rèn)識(shí)時(shí)間,乾安縣大遐學(xué)校：孟哲,義務(wù)教育課程標(biāo)準(zhǔn)教科書(shū)小學(xué)數(shù)學(xué)二年級(jí)上冊(cè)第七單元第一課,我有一個(gè)好朋友，滴答滴答一直走，叫我學(xué)習(xí)和休息，真是我的好朋友 。,問(wèn)題：鐘表上現(xiàn)在是什么時(shí)間？,上課啦！,1,2,3,4,5,7,6,8,11,12,10,9,12個(gè),鐘面上一共有多少個(gè)大格？,1個(gè)大格有多少個(gè)小格？,一共有多少個(gè)小格？,5個(gè),60個(gè),鐘面上都有什么？,數(shù)字、時(shí)針、分針、格子,1,2,3,4,5,7,6,8,11,12,10,9,( ),( ),5,10,15,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,1,2,3,4,5,7,6,8,11,12,10,9,

2、5,10,15,20,25,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,2

3、0,25,30,35,40,45,50,55,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,60,12個(gè),鐘面上一共有多少個(gè)大格？,1個(gè)大格有多少個(gè)小格？,一共有多少個(gè)小格？,5個(gè),60個(gè),時(shí)針走一個(gè)大格是多長(zhǎng)時(shí)間？,分針走一個(gè)小格是多長(zhǎng)時(shí)間？,分針走一圈是多長(zhǎng)時(shí)間？,1小時(shí),1分鐘,時(shí)針和分針的關(guān)系,請(qǐng)你自己撥一撥，看一看分針走1圈，時(shí)針走幾大格？,1,2,3,4,5,7,6,8,11,12,10,9,分針走1圈，時(shí)針走幾大格？,1時(shí)=60分,1小時(shí)=60分,鐘面上有,個(gè)大格，,個(gè)小格。,時(shí)針走個(gè)大格是,分針走個(gè)小格是,

4、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,你會(huì)時(shí)間的讀和寫(xiě)嗎？,11,12,10,1,3,4,5,6,9,8,7,5,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,30,考考你！,11,12,10,1,2,3,4,5,6,9,8,7,5,10,15,20,25,4時(shí)45分,4:45,30,35,40,45,9時(shí)15分 9：15,11時(shí)55分 11：55,（,）,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)間去踢球？,A、7:45,B、9:15,C、10:50,( ),( ),( ),做游戲啦！,請(qǐng)你撥一撥下面的時(shí)間，兩個(gè)同學(xué)一組，一個(gè)同學(xué)撥，一個(gè)同學(xué)看，然后看的同學(xué)當(dāng)小老師，看