最新人教版三年級(jí)上冊(cè)數(shù)學(xué)時(shí)分秒復(fù)習(xí)課ppt_圖文

1、,1秒,秒針走過1小格，是1秒。,,,,12,1,2,3,4,5,6,7,8,9,10,11,,,,,,,,,,,秒針共走過1大格，也就是5小格。是5秒。,,秒針走1小格就是 秒，走1圈是 秒，也就是 分。,1分＝60秒,1,60,1,1時(shí)＝60分,鐘面上有,,個(gè)大格，,,個(gè)小格。,⒈,⒉,時(shí)針走１個(gè)大格是,分針走１個(gè)小格是,時(shí)針走１個(gè)大格，分針正好走,走１大格是,,,,時(shí)。,⒊,⒋,分，,圈，,,分。,是,分。,,12,60

2、,1,1,5,1,60,填一填,,鐘面上的時(shí)刻,說一說 、寫一寫,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,9時(shí),9:03,3分,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,8時(shí),8:18,,,,,,,18分,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,

3、,,,,,,,,,,12時(shí),12:40,40分,,,,,,,,,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,9:10,9時(shí)10分,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,9:05,9時(shí)5分,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,

4、,,,,,,,,9時(shí)20分,9:20,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,10時(shí)35分,10:35,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,8時(shí),8:00,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,12時(shí),1

5、2:40,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,8時(shí)7分,8:07,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,4時(shí)5分,4:05,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2時(shí)55分,2:55,,1,2,3,4,

6、5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2時(shí)42分,2:42,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,8時(shí),8:30,,1,2,3,4,5,6,7,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,3時(shí),3:35,,,,,,,,35分,,1,2,3,4,5,6,7

7、,8,9,10,11,12,,,,,,,,,,,,,,,,,,,,,,,,,,,,9時(shí),9:20,20分,,,,,動(dòng)動(dòng)腦：,秒針從數(shù)字3走到數(shù)字6經(jīng)過多長(zhǎng)時(shí)間？分針從數(shù)字3走到數(shù)字6經(jīng)過多長(zhǎng)時(shí)間？時(shí)針從數(shù)字3走到數(shù)字6經(jīng)過多長(zhǎng)時(shí)間？,15秒,15分,3小時(shí),4 分 =（ ）秒,3 時(shí) =（ ）分,180,240,120秒 =（ ）分,300分 = （ ）時(shí),2,5,,做一

8、做：,1時(shí)20分=（ ）分,80,2分37秒= （ ）秒,157,填空,50,70,60,1,90,,時(shí)間過得真快呀！,11　40,12　05,4　15,4　50,5　25,25分,35分,35分,,（1）上午第一節(jié)課用了多少時(shí)間？,（2）下午2：10同學(xué)們正在做什么？,（3）如果你在這所小學(xué)讀書，從家學(xué)校要走10分鐘，你最晚什么時(shí)候起床？　說說你的理由。,（4）你還能提出其　他數(shù)學(xué)問題嗎？,晚

9、上7：30播出，播出的時(shí)間為2小時(shí)20分鐘， 晚會(huì)結(jié)束在什么時(shí)間？,兒童游泳隊(duì)測(cè)試100米蛙泳成績(jī)。小強(qiáng)用2分35秒，小剛用3分10秒。小強(qiáng)比小剛快多少秒？,190秒—155秒=,35秒,3分10秒=190秒2分35秒=155秒,1、獲得第一名的是第 道的運(yùn)動(dòng)員。2、王偉是第1道的運(yùn)動(dòng)員，他用了 秒完成比賽，獲得了第 名。3、最快的比最慢的快了______秒。4、