牛津苏教三下UnitPlusandminus公开课课件

1、牛津苏教三下UnitPlusandminus公开课课件 Sorry, youre wrong. (对不起，你答错了对不起，你答错了） Oh，no. （哦，不）zooLets go to the zoo. 动物园里有各种各样的动物动物园里有各种各样的动物, ,请你请你来数一数各有多少只来数一数各有多少只, ,好吗好吗? ?Lets go to the zoo.Lets go to the zoo.Count(数一数数一数)onetwothreefourfive1+4 =?Whats one plus four? Its five.5+ 2+5 =?Whats two plus five? Its

2、 seven.7+ 3+6 =?Whats three plus six? Its nine.9+ 1+43+62+5one plus fourtwo plus fivethree plus six Practice:Practice: A: Whats plus? A: Whats plus? B: Its B: Its A:Whats five plus two? 5 + 2 = ?B:Its seven.?A: Thats right.7十十Questions:Questions:?A: Whats eight plus five?A: Whats eight plus five? 8

3、+5 =? 8 +5 =?B: Its thirteen.B: Its thirteen.A: Thats right.13Questions:Questions:Whats ten plus four?Whats ten plus four? 10 + 4 = ? 10 + 4 = ?Its fourteenIts fourteen.?Thats rightThats right.1414十十Questions:Questions:5 54 43 32 21 11516171819 Whatsplus? Its twenty twenty.(20)Questions:Questions:fi

4、fteenfifteensixteensixteenseventeenseventeeneighteeneighteennineteennineteen Sorry, youre wrong. (对不起，你答错了对不起，你答错了） Oh，no. （哦，不）13thirteen14fourteen15fifteen16sixteen17seventeen18eighteen19nineteen20twenty12twelveWhats missingWhats missing？Whats nine minus four ?Its five9-4=?Whats eight minus two?It

5、s six.8-220-4=?A: Whats twenty minus four？B: Its sixteen 9-4 8-220-4nine minus foureight minus twotwenty minus four11-6=9-4=7-2= 12-8= 10-1= 14-7=6-4= 13-5= 897452Questions:Questions:1276345A:A: Whats plus /minus? Whats plus /minus? B: ItsB: ItsA: Thats right.A: Thats right. Sorry, youre wrong. Sorry, youre wrong. Oh, no. Oh, no.Make a convers