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整理和复习 1、 1米=100厘米 2、画线段。 3、练习。
第一单元试卷
6-7 一、口算。(20分)
57+8= 36-8= 25+70= 68-50= 42+6= 57-3= 7+80= 37-7= 80-60= 46-9= 15-9= 68+5= 9+72= 32-5= 57-30= 71+9= 46-9= 28+5= 6+35= 6+56= 7+8= 57-3= 48-20= 30+25= 83-20= 9+27= 13-6= 89-8= 24-6= 24+30= 54-7= 93-30= 63-8= 41-8= 60-3= 84-80= 39-7= 75-50= 95-70= 24+5= 二、填空。(30分) www.docin.com 1 2 3、一把尺的刻度从0到5 6到10 厘米。
4、小明身高120 黑板长4 5、3米+15米= 60厘米-5厘米= 500厘米=( )米 2米=( )厘米
三、下面图形中是线段的在( )里打“√”,不是的打“×”。 四、 9 1( )里。 ( )厘米
2、画一条比8厘米少5厘米的线段。
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1、校园里种月季花34 1947
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( )棵花。
2、一根铁丝截去4028 _________________________
试卷讲评教案
8-9
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第二单元教材分析 一、教学内容:
连加、连减和加减混和运算。
1.两位数加减两位数的计算方法。 2.连加、连减和加减混和的计算方法。
1.进位加法、退位减法的计算方法。 2.连加、连减、加减混和的竖式写法。
1 2. 达到要求。
1.使学生能正确计算100以内的两位数加减两位数。 www.docin.com 2.使学生能正确计算100以内的连加、连减和加减混和式题。
3.培养学生会用竖式笔算的方法。 4.培养学生认真、细心的良好习惯。 六、课时安排15课时
1.两位数加两位数?????????????3课时 2.两位数减两位数?????????????5课时 3.连加连减和加减混和???????????4课时 4.整理和复习???????????????2课时 5.实践活动????????????????1课时
二、100 1
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课本第8-10页例1、例2不进位加法。
教材安排一幅情景图。目的让学生感受到实际生活中确实存
的计算顺序问题。
竖式的书写以及计算顺序。
从个位加起的计算顺序。
三疑三探教学模式
www.docin.com 小棒若干。
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30+40= 40+50= 20+60= 25+1= 83+5= 33+6= 34+5= 25+2= 2
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老师把同学们提出的问题归纳为