新版二年級(jí)上冊(cè)數(shù)學(xué)《認(rèn)識(shí)時(shí)間》.ppt
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)目標(biāo): 1、認(rèn)識(shí)時(shí)和分,知道1時(shí)=60分; 2、認(rèn)識(shí)時(shí)間,會(huì)用幾時(shí)幾分表示時(shí)間; 3、教育學(xué)生珍惜時(shí)間,養(yǎng)成良好的學(xué)習(xí)習(xí)慣。,我有一個(gè)好朋友, 嘀噠嘀噠不停走, 叫我學(xué)習(xí)和休息, 真是我的好幫手,猜謎語(yǔ),鬧鐘,3時(shí),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,時(shí)針從一個(gè)數(shù)走到下一個(gè)數(shù)經(jīng)過(guò)的時(shí)間是1時(shí)。,1,2,3,4,5,7,6,8,11,12,10,9,分針走1小格經(jīng)過(guò)的時(shí)間是1分,走幾小格經(jīng)過(guò)的時(shí)間就是幾分鐘。,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,1,2,3,4,5,7,6,8,11,12,10,9,分針走一圈走了( )個(gè)小格,是( )分,同時(shí)時(shí)針走了一個(gè)大格,是( )時(shí)。,60,60,1,=,分針走一圈,時(shí)針走一個(gè)大格。 1時(shí)=60分,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí) 5分,4:05,5,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí)30分或4時(shí)半,4:30,5,10,20,15,25,30,2,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí)45分,4:45,5,10,20,15,25,30,35,40,45,=,小結(jié):先看時(shí)針走過(guò)幾就是幾時(shí)多, 多了多少分, 再看分針從12起走過(guò)幾小格就是幾分, 合起來(lái)就是幾時(shí)幾分。,四、應(yīng)用拓展,鞏固新知,做一做。,問(wèn)題:你能準(zhǔn)確寫出每個(gè)鐘表所表示的時(shí)間嗎?,7:30,7:40,8:00,10:45,9:55,6:05,1:20,課堂小結(jié): 剛才我們是幾時(shí)開始上課的?還記得嗎?請(qǐng)?jiān)阽娒嫔蠐芤粨堋?時(shí)間滴答滴答過(guò)得真快,40分鐘過(guò)去了,在這40分鐘里面,你學(xué)到了什么呢?,謝 謝 指 導(dǎo),
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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)目標(biāo): 1、認(rèn)識(shí)時(shí)和分,知道1時(shí)=60分; 2、認(rèn)識(shí)時(shí)間,會(huì)用幾時(shí)幾分表示時(shí)間; 3、教育學(xué)生珍惜時(shí)間,養(yǎng)成良好的學(xué)習(xí)習(xí)慣。,我有一個(gè)好朋友, 嘀噠嘀噠不停走, 叫我學(xué)習(xí)和休息, 真是我的好幫手,猜謎語(yǔ),鬧鐘,3時(shí),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,時(shí)針從一個(gè)數(shù)走到下一個(gè)數(shù)經(jīng)過(guò)的時(shí)間是1時(shí)。,1,2,3,4,5,7,6,8,11,12,10,9,分針走1小格經(jīng)過(guò)的時(shí)間是1分,走幾小格經(jīng)過(guò)的時(shí)間就是幾分鐘。,1,2,3,4,5,7,6,8,11,12,10,9,5,1,2,3,4,5,7,6,8,11,12,10,9,5,10,15,20,25,30,35,40,45,50,55,1,2,3,4,5,7,6,8,11,12,10,9,分針走一圈走了( )個(gè)小格,是( )分,同時(shí)時(shí)針走了一個(gè)大格,是( )時(shí)。,60,60,1,=,分針走一圈,時(shí)針走一個(gè)大格。 1時(shí)=60分,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí) 5分,4:05,5,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí)30分或4時(shí)半,4:30,5,10,20,15,25,30,2,11,12,10,1,3,4,5,6,9,8,7,2,從四時(shí)開始數(shù)。,4時(shí)45分,4:45,5,10,20,15,25,30,35,40,45,=,小結(jié):先看時(shí)針走過(guò)幾就是幾時(shí)多, 多了多少分, 再看分針從12起走過(guò)幾小格就是幾分, 合起來(lái)就是幾時(shí)幾分。,四、應(yīng)用拓展,鞏固新知,做一做。,問(wèn)題:你能準(zhǔn)確寫出每個(gè)鐘表所表示的時(shí)間嗎?,7:30,7:40,8:00,10:45,9:55,6:05,1:20,課堂小結(jié): 剛才我們是幾時(shí)開始上課的?還記得嗎?請(qǐng)?jiān)阽娒嫔蠐芤粨堋?時(shí)間滴答滴答過(guò)得真快,40分鐘過(guò)去了,在這40分鐘里面,你學(xué)到了什么呢?,謝 謝 指 導(dǎo),
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