<div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第一单元认识图形(二)</font></span></div><br><span style=" font-weight:bold; ">1、认识和会画</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/201461215720.jpg?m=0.16168075730092824"><br><br><span style=" font-weight:bold; ">2、</span><div><span style=" font-weight:bold; "><br></span></div><div><span style=" font-weight:bold; "><img src="//www.szxuexiao.com/uploadimages/2014/0612/201461215821.jpg?m=0.09093738719820976"><br></span></div><div><span style=" font-weight:bold; "><br></span></div><div><span style=" font-weight:bold; ">七巧板是由1个正方形</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">1个平行四边形</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">5个三角形组成的。</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">3、缺了几块砖的方法</span><br><br><span>(1)</span><span style=" font-family: 宋体;">根据砖的排列规律用画一画来解决。</span><br><br><span style=" font-family: 宋体;">(2)不动手、不动笔,看着第一层就知道第三、五层缺了几块砖,看着第二层就知道第四、六层缺了几块砖。</span><br><br><span style=" font-family: 宋体;">(3)先数一层有几块砖,每一层都是一样长的,算出每层缺了几块砖。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/201461215929.jpg?m=0.5243054062593728"><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第二单元20以内的退位减法</font></span></div><br><span>1、计算方法</span><br><br><span>11-9=□</span><br><br><span style=" font-weight:bold; ">方法一:破十法</span><span style=" font-weight:bold; "></span><br><br><span>11-9=2</span><br><br><span>先算:10-9=1,再算:1+1=2</span><br><br><span style=" font-weight:bold; ">方法二:想加法算减法</span><span style=" font-weight:bold; "></span><br><br><span>11-9=2</span><br><br><span>因为:9+2=11,所以:11-9=2</span><br><br><span style=" font-weight:bold; ">方法三</span><span style=" font-weight:bold; ">:</span><span style=" font-weight:bold; ">连减法</span><br><br><span>11-9=2</span><br><br><span>11-1-1-1-1-1-1-1-1-1=2</span><br><br><span>2、解决问题</span><br><br><span>(1)选择有效信息,排除干扰信息。</span><br><br><span>解决问题需要两个条件和一个问题。</span><br><br><span>例:小明家有14只鸡和5只鸭。公鸡有6只,母鸡有几只?</span><br><br><span>分析:两个条件是14只鸡和公鸡有6只。</span><br><br><span>问题是母鸡有几只?</span><br><br><span style=" font-weight:bold; ">干扰信息:5只鸭。</span><span style=" font-weight:bold; "></span><br><br><span>14-6=8(只)</span><br><br><span>口答:母鸡有8只。</span><br><br><span>(2)求一个数比另一个数多几或求一个数比另一个数少几?</span><span style=" font-weight:bold; ">(减法)</span><span style=" font-weight:bold; "></span><br><br><span>例1:小华有12个苹果,小芳有7个苹果,小华比小芳多几个?</span><br><br><span>12-7=5(个)</span><br><br><span>口答:小华比小芳多5个。</span><br><br><span>例2:小华有12个苹果,小芳有7个苹果,小芳比小华少几个?</span><br><br><span>12-7=5(个)</span><br><br><span>口答:小芳比小华少5个。</span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第三单元分类与整理</font></span></div><br><span>(要求:会填和画表格,自己能给出分类标准,进行分类。)</span><br><br><span style=" font-weight:bold; ">分类的标准一致,分类的结果就一致。</span><br><br><span style=" font-weight:bold; ">分类的标准不同,分类的结果就不同。</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612151054.jpg?m=0.09553777612745762"><br><br><span>1、按大人和孩子分</span><br><br>
<table width="100%" border="1"><tbody><tr><td><br> <br></td><td><br>大 人<br></td><td><br>孩 子<br></td></tr><tr><td><br>人 数<br></td><td><br>8<br></td><td><br>4<br></td></tr></tbody></table>
<br><span>2、按男女分</span><br><br>
<table width="100%" border="1"><tbody><tr><td><br> <br></td><td><br>男<br></td><td><br>女<br></td></tr><tr><td><br>人 数<br></td><td><br>6<br></td><td><br>6<br></td></tr></tbody></table>
<br><span>3、说一说你知道了什么信息?</span><br><br><span>4、你能提出什么数学问题?并解答。</span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第四单元100以内数的认识</font></span></div><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/201461215134.jpg?m=0.3269351702183485"><br><br><span>1、45、46、47、( )、( )、( )、( )、( )</span><br><br><span>10、20、30、( )、( )、( )、( )、( )</span><br><br><span>三十五接着数5个数是( )、( )、( )、( )、( )</span><br><br><span>2、10个一( ),10个十( );我是由8个一和3个十组成( ),我是由5个十和8个一组成( );我是79,我的前面是( ),后面是( );我是85,比我少3是( )。</span><br><br><span>3、五十二写作( ),三十七写作( );89读作( )</span><br><br><span>68读作( ),</span><span style=" font-weight:bold; ">读数和写数都是从高位起。</span><br><br><span>从右边起,第一位是( ),第二位是( ),第三位( )。</span><br><br><span>4、比较大小</span><br><br><span>(1)先比较十位,十位大的数就大。例如:34○58</span><br><br><span>(2)十位相同再比较个位,个位大的数就大。62○69</span><br><br><span>5、学会用</span><span style=" font-weight:bold; ">多一些、少一些、多得多和少得多</span><span>等语言来描述两个数之间的大小关系。例如:18比16多一些,16比18少一些;</span><br><br><span>99比10多得多,10比99少得多。</span><br><br><span>6、整十数加一位数及相应的减法</span><br><br><span>几十加几就是加上几个一,结果就是几十几。例如:30+2=32</span><br><br><span>方法:(1)数的组成 30和2组成32 </span><br><br><span>(2)加、减的关系 30+2=32 2+30=32;32-30=2 32-2=30</span><br><br><span>(3)继续数或倒着数。30+2=32 接着数的方法:31,32 </span><br><br><span>32-2=30 倒着数的方法:31,30 </span><br><br><span>7、最大的一位数是( ),最大的两位数( ),最小的两位数( )。</span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第五单元认识人民币</font></span></div><br><span>1、1元=10角 1角=10分 1元=100分</span><br><br><span>5角=( )分 6元=( )角 20分=( )角</span><br><br><span>3元9角=( )角 1角2分=( )分 </span><br><br><span>13角=( )元( )角 26分=( )角( )分</span><br><br><span>4元+8元=( )元 5角+1元3角=( )元( )角</span><br><br><span>4角+9角=( )角=( )元( )角</span><br><br><span>2、5角○5元 3元○2元9角 89角○8元9角</span><br><br><span>5元6角○6元5角 3角4分○3元4角</span><br><br><span>3元6角8分○3元6角4分</span><br><br><span>先比较</span><span style=" font-weight:bold; ">元</span><span>,再比较</span><span style=" font-weight:bold; ">角</span><span>,最后比较</span><span style=" font-weight:bold; ">分</span><br><br><span>3、1张5元可以换( )张1元,1张10元可以换( )张1元;</span><br><br><span>1张10元可以换( )张5元,1张10元可以换( )张2元;</span><br><br><span>1张20元可以换( )张10元,1张50元可以换( )张10元;</span><br><br><span>1张100元可以换( )张10元,1张100元可以换( )张50元;</span><br><br><span>1张1元可以换( )张1角或换成( )张5角;</span><br><br><span>1张5元可以换( )张1元和( )张2元;</span><br><br><span>1张100元可以换( )张50元和( )张10元;</span><br><br><span>4、</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612151443.jpg?m=0.5844646284822375"><br><br><span>(1)19元正好可以买哪两种玩具?</span><br><br><span>(2)买洋娃娃和球需要多少钱?</span><br><br><span>4、</span><span style=" z-index:1; left:0px; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/201461215168.jpg?m=0.06433498859405518"><br><br><span>5、</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612151657.jpg?m=0.9757371472660452"><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第六单元100以内的加法和减法(一)</font></span></div><br><span>1、整十数加、减整十数</span><br><br><span>2+3=5 表示:2个一加3个一等于5个一,就是5。</span><br><br><span style=" font-weight:bold; ">2</span><span>0+</span><span style=" font-weight:bold; ">3</span><span>0=</span><span style=" font-weight:bold; ">5</span><span>0 表示:2个十加3个十等于5个十,就是50。</span><br><br><span>70-30=40 表示:7个十减3个十等于4个十,就是40。</span><br><br><span style=" font-weight:bold; ">整十数加、减整十数,只要把十位上的数相加减就可以了。</span><span style=" font-weight:bold; "></span><br><br><span>2、</span><span>两位数加一位数、整十数</span><br><br><span>(1)不进位</span><br><br><span>25+2=27 25+20=45 </span><br><br><span>先算:5+2=7 先算:20+20=40</span><br><br><span>再算:20+7=27 再算:40+5=45</span><br><br><span>两位数加一位数、整十数,要注意</span><span style=" font-weight:bold; ">个位</span><span>上的数和</span><span style=" font-weight:bold; ">个位</span><span>上的数相加,</span><span style=" font-weight:bold; ">十位</span><span>上的数和</span><span style=" font-weight:bold; ">十位</span><span>上的数相加。</span><br><br><span style=" font-weight:bold; ">相同数位的上数才能直接相加</span><span style=" font-weight:bold; "></span><br><br><span>(2)进位</span><br><br><span>24+9=33 24+9=33 </span><br><br><span>先算: 4+9=13 先算:24+6=30</span><br><br><span>再算: 20+13=33 再算:30+3=33 </span><br><br><span style=" font-weight:bold; ">★两位数加一位数:个位相加不满十,十位的数不变;</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">个位相加满十,一定要向十位进1。</span><br><br><span>3、两位数减一位数、整十数</span><br><br><span>(1)不退位</span><br><br><span>35-2=33 35-20=15</span><br><br><span>先算:5-2=3 先算:30-20=10</span><br><br><span>再算:30+3=33 再算:10+5=15</span><br><br><span>两位数减一位数、整十数</span><span>要注意个位上的数和个位上的数相减,十位上的数和十位上的数相减。</span><br><br><span style=" font-weight:bold; ">相同数位的上数才能直接相减</span><span style=" font-weight:bold; "></span><br><br><span>(2)</span><span>退位</span><br><br><span style=" font-weight:bold; "> </span><span>36-8=28 36-8=28</span><br><br><span>先算:10-8=2 先算:16-8=8</span><br><br><span>再算:26+2=28 再算:20+8=28</span><br><br><span>★ </span><span>两位数减一位数:</span><span style=" font-weight:bold; ">个位够减,十位上的数不变,是不退位减法。</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">个位不够减,要从十位上退1(作十),是退位减法。</span><span style=" font-weight:bold; "></span><br><br><span>4、小括号</span><br><br><span> 10-2-3=5 10-(2+3)=5</span><br><br><span>先算:10-2=8 先算:2+3=5</span><br><br><span>再算:8-3=5 再算:10-5=5</span><br><br><span style=" font-weight:bold; ">有括号的先算括号里面的</span><span style=" font-weight:bold; "></span><br><br><span>5、解决连加问题</span><br><br><span>3个同学一起折小星星,每人折了6个,他们一共折了多少个小星星?</span><br><br><span>(1)加法解答</span><br><br><span>6+6+6=18(个)</span><br><br><span>(2)列表解答</span></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612151954.jpg?m=0.4981104740872979"><br></div><div><br><span>6、解决连减问题</span><br><br><span>28个橘子,9个装一袋,可以装满几袋?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612152040.jpg?m=0.7030440133530647"><br><br><span>(1)圈一圈解答</span><br><br><span>(2)连减解答</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612152145.jpg?m=0.7694505120161921"><br><br><span style=" font-weight:bold; ">摆一摆,想一想</span><span style=" font-weight:bold; "></span><br><br><span>1、你能用3个●摆出不同的数吗? </span><br> <br>
<table width="100%" border="1"><tbody><tr><td><br>十位<br></td><td><br>个位<br></td><td><br>组成的数<br></td></tr><tr><td><br><o:p> </o:p><br></td><td><br>●●●<br></td><td><br>3<br></td></tr><tr><td><br>●<br></td><td><br>●●<br></td><td><br>12<br></td></tr><tr><td><br>●●<br></td><td><br>●<br></td><td><br>21<br></td></tr><tr><td><br>●●●<br></td><td><br><o:p> </o:p><br></td><td><br>30<br></td></tr></tbody></table>
<br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612152259.jpg?m=0.2308384357020259" width="600"><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第七单元找规律</font></span></div><br><span>1、按规律接着画</span><br><br><span>□ △ □ △ □ △ </span><span style=" text-decoration:underline ; "> </span><span> </span><span style=" text-decoration:underline ; "> </span><br><br><span>♀ ♂ ♀ ♂ ♀ ♂ </span><span style=" text-decoration:underline ; "> </span><span> </span><span style=" text-decoration:underline ; "> </span><span style=" text-decoration:underline ; "></span><br><br><span>○ ○ □ ○ ○ □ ○ ○ □ </span><span style=" text-decoration:underline ; "> </span><span> </span><span style=" text-decoration:underline ; "> </span><span style=" text-decoration:underline ; "></span><br><br><span>2、按规律填数</span><br><br><span>0 2 4 6 ( ) ( ) ( )</span><br><br><span>72 62 52 42 ( ) ( ) ( ) </span><br><br><span>5 10 15 20 ( ) ( ) ( )</span><br><br><span>7 8 10 13 ( ) ( ) ( )</span><br><br><span>3、</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0612/2014612152436.jpg?m=0.3826009202748537"><br><br><span>4、下面各题中都有一个数不符合规律,把它圈起来,并改正在横线上。</span><br><br><span>2 4 6 9 10 12 14 _</span><br><br><span>5 10 15 16 25 30 _</span><br><br><span>88 77 66 55 45 33 _</span><br><br><span>5、按规律涂颜色</span><br><br><span>(1)★ ★ ☆ ★ ★ ☆ ☆ ☆ ☆ ☆ ☆ ☆</span><br><br><span>(2)◇◇◆◇◇◆◇◇◆◇◇◇</span><br><br><span>(3)○○●○○●○○○○○○</span><br><br></div>
一年级下