牛津苏教三下Unit5Plusandminus课件.ppt

Unit 5 Plus and minus,By Shen Ping,65845254,54876521,85632790,36548812,65374810,7:00,11:05,14:15,16:13,20:10,21:20,Whats the time?,17:12,9:00,16:11,3:18,How many can you see?I can see,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty,one eleven two twelvethreefour fivesixseveneightnine ten,thirteenfourteen fifteensixteenseventeeneighteennineteen,twenty,t：n,t,Listen and say the next（后）number.,Listen and say the number before(前）.,PUZZLES:,1,3,_,7,_,_.,10,_,14_,18,_.,11,13,_,17,_,_,5,9,11,12,16,20,15,19,21,Magic eyes,A:How many can you see?B:I can see.,8,14,10,5,7,12,6,10,15,13,Whatsplus?Its twenty.,11-6=,9-4=,7-2=,12-8=,10-1=,14-7=,6-4=,13-5=,8,9,7,4,5,2,5+5=,12-8=,1+9=,2+9=,3+6=,15-9=,3+7=,8-2=,13+4=,Whats plus?,Its.,Whats minus?,Its.,设计一份加减法口算试卷,与周围同学一起练习英语表述.,Homework,