<div><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">小学三年级数学下册知识点总复习 </font></span></div><div><br></div><br><div style="text-align: center;"><strong><font color="#38761d">第一单元 除法</font></strong></div><br><span style=" font-weight:bold; ">[本单元知识点]:</span><span style=" font-weight:bold; "></span><br><br><span>1、整百数除以一位数；2、商中间有0的除法；3、商末尾有0的除法；4、简单应用。</span><br><br><span>1[记忆]</span><span>三位数除以一位数，商可能是</span><span style=" text-decoration:underline ; ">两位数</span><span>，也可能是</span><span style=" text-decoration:underline ; ">三位数</span><span>。（百位够除时商是三位数，百位不够除时是两位数。） </span><br><br><span>2[</span><span>记忆</span><span>]商中间有0的除法。（十位不够除时要商0） </span><br><br><span>3[</span><span>记忆]0乘任何数都等于0。0除以</span><span style=" text-decoration:underline ; ">任何不为0的数</span><span>都等于0。 </span><br><br><span>4[连除应用题]。</span><span> </span><span>xK b1.Co m</span><br><br><span>5[半价出售]</span><span style=" text-decoration:underline ; ">（原来的价格÷2=现在的价格）</span><span style=" text-decoration:underline ; "></span><br><br><span>6、</span><span style=" font-weight:bold; ">记忆</span><span>数量关系式：鸡的总只数÷层数=每层的只数 书的总本数÷书架的个数=每个书架上书的本数</span><br><br><span>电池的总个数÷每盒电池的个数=盒数 速度×时间=路程 路程÷时间=速度 路程÷速度=时间</span><br><br><span>跳绳的总个数÷几分钟=每分钟跳的个数 工作总量÷工作时间=工作效率 </span><br><br><span>打字的个数÷时间=每分钟打字的个数 </span><br><br><br><div style="text-align: center;"><strong><font color="#38761d">第二单元 年月日</font></strong></div><br><span style=" font-weight:bold; ">[本单元知识点]:</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">1、认识大月、小月、平年、闰年；2计算经过的天数；3、生日快乐</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">1[记忆]</span><span>年分为</span><span style=" text-decoration:underline ; ">平年</span><span>、</span><span style=" text-decoration:underline ; ">闰年</span><span>；月分为</span><span style=" text-decoration:underline ; ">大月</span><span>、</span><span style=" text-decoration:underline ; ">小月</span><span>和特殊的2月。平年有365天，闰年有366天。（</span><span style=" font-weight:bold; ">大月</span><span>有：</span><span style=" text-decoration:underline ; ">1月、3月、5月、7月、8月、10月、12月</span><span>（7个）；</span><span style=" font-weight:bold; ">小月</span><span>有：4月、6月、9月、11月）（4个）</span><br><br><span>平年的2月有</span><span style=" text-decoration:underline ; ">28天</span><span>，闰年的2月有</span><span style=" text-decoration:underline ; ">29天</span><span>。 </span><br><br><span>2</span><span style=" font-weight:bold; ">连续的大月</span><span>有</span><span style=" text-decoration:underline ; ">7月和8月</span><span>，或者</span><span style=" text-decoration:underline ; ">12月和1月</span><span>。</span><span style=" font-weight:bold; ">连续两个月天数是61天</span><span>，其中一个是</span><span style=" font-weight:bold; ">大月</span><span>，一个</span><span style=" font-weight:bold; ">小月</span><span>。</span></div><div><br>
<table width="80%" border="1"><tbody><tr><td><br>平年<br></td><td><br>第1季度<br></td><td><br>第2季度<br></td><td><br>第3季度<br></td><td><br>第4季度<br></td></tr><tr><td><br>天数<br></td><td><br>90<br></td><td><br>91<br></td><td><br>92<br></td><td><br>92<br></td></tr><tr><td><br>半年<br></td><td colspan="2"><br>上半年181天<br></td><td colspan="2"><br>下半年184天<br></td></tr></tbody></table>
<br><span>3、</span><br><br><table style="border-collapse:collapse;
margin-left:6.7500pt; margin-right:6.7500pt; mso-table-layout-alt:fixed;
padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; "><tbody><tr><td width="56" valign="center" style="width:42.3000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:0.5000pt solid rgb(0,0,0); mso-border-left-alt:0.5000pt solid rgb(0,0,0); border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:0.5000pt solid rgb(0,0,0); mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">平年</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="82" valign="center" style="width:62.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:0.5000pt solid rgb(0,0,0); mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">第1季度</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:0.5000pt solid rgb(0,0,0); mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">第2季度</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:0.5000pt solid rgb(0,0,0); mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">第3季度</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:0.5000pt solid rgb(0,0,0); mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">第4季度</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td></tr><tr><td width="56" valign="center" style="width:42.3000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:0.5000pt solid rgb(0,0,0); mso-border-left-alt:0.5000pt solid rgb(0,0,0); border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">天数</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="82" valign="center" style="width:62.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; color:rgb(255,0,0); font-weight:bold; font-size:12.0000pt; font-family:‘宋体‘; ">90</span><span style="color:rgb(255,0,0); font-weight:bold; font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">91</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">92</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="84" valign="center" style="width:63.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">92</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td></tr><tr><td width="56" valign="center" style="width:42.3000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:0.5000pt solid rgb(0,0,0); mso-border-left-alt:0.5000pt solid rgb(0,0,0); border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">半年</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="166" valign="center" colspan="2" style="width:125.1000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">上半年181天</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td><td width="168" valign="center" colspan="2" style="width:126.0000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; ; mso-border-left-alt:none; ; border-right:0.5000pt solid rgb(0,0,0); mso-border-right-alt:0.5000pt solid rgb(0,0,0); border-top:none; ; mso-border-top-alt:0.5000pt solid rgb(0,0,0); border-bottom:0.5000pt solid rgb(0,0,0); mso-border-bottom-alt:0.5000pt solid rgb(0,0,0); "><p class="p0" style="margin-bottom:0pt; margin-top:0pt; text-align:center; line-height:150%; "><span style="mso-spacerun:‘yes‘; font-size:12.0000pt; font-family:‘宋体‘; ">下半年</span><span style="mso-spacerun:‘yes‘; color:rgb(255,0,0); font-weight:bold; font-size:12.0000pt; font-family:‘宋体‘; ">184</span><span style="font-size:12.0000pt; font-family:‘宋体‘; ">天</span><span style="font-size:12.0000pt; font-family:‘宋体‘; "></span></p></td></tr></tbody></table><br>4、<br>
<table width="80%" border="1"><tbody><tr><td><br>平年<br></td><td><br>第1季度<br></td><td><br>第2季度<br></td><td><br>第3季度<br></td><td><br>第4季度<br></td></tr><tr><td><br>天数<br></td><td><br>91<br></td><td><br>91<br></td><td><br>92<br></td><td><br>92<br></td></tr><tr><td><br>半年<br></td><td colspan="2"><br>上半年182天<br></td><td colspan="2"><br>下半年184天<br></td></tr></tbody></table>
<br><span>5、各类节日：元旦节</span><span style=" text-decoration:underline ; ">1月1日</span><span>、植树节</span><span style=" text-decoration:underline ; ">3月12日</span><span>、国际劳动节</span><span style=" text-decoration:underline ; ">5月1日</span><span>、国际儿童节</span><span style=" text-decoration:underline ; ">6月1日</span><span>、建军节</span><span style=" text-decoration:underline ; ">8月1日</span><span>、建党节</span><span style=" text-decoration:underline ; ">7月1日</span><span>、国庆节</span><span style=" text-decoration:underline ; ">10月1日</span><span>、教师节</span><span style=" text-decoration:underline ; ">9月10日</span><span>等。</span><br><br><span>6、</span><span style=" font-weight:bold; ">通常</span><span>每</span><span style=" text-decoration:underline ; ">4</span><span>年里有</span><span style=" text-decoration:underline ; ">3个平年</span><span>、</span><span style=" text-decoration:underline ; ">1个闰年</span><span>。公历年份是4的倍数的</span><span style=" font-weight:bold; ">一般</span><span>是闰年。公历年份是</span><span style=" text-decoration:underline ; ">整百数</span><span>的，必须是</span><span style=" text-decoration:underline ; ">400的倍数</span><span>，才是闰年（公元800年、1200年、1600年、2000年、2400年等）。</span><br><br><span>7、记忆：中华人民共和国成立于</span><span style=" text-decoration:underline ; ">1949年10月1日</span><span>，到2008年是</span><span style=" text-decoration:underline ; ">59周年</span><span>。（2008-1949=59）</span><br><br><span>8、计算天数</span><span style=" font-weight:bold; ">[分月计算]</span><span> 如6月12到8月17日是多少天？</span></div><div><br>
<table width="80%" border="1"><tbody><tr><td><br>月 份<br></td><td><br>6 月<br></td><td><br>7 月<br></td><td><br>8 月<br></td></tr><tr><td rowspan="3"><br>思<br><br>考<br></td><td><br>12日----30日<br></td><td><br>31天<br></td><td><br>1日-----17日<br></td></tr><tr><td><br>30-12+1=19天<br></td><td><br>31天<br></td><td><br>17天<br></td></tr><tr><td colspan="3"><br>合计：19+31+17=57天<br></td></tr></tbody></table>
<br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第三单元 平移和旋转</font></span></div><br><span style=" font-weight:bold; ">[本单元知识点]：</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">1、</span>认识平移和旋转2、美丽的花边<br><br>注意点：平移后物体的<span style=" text-decoration:underline ; ">形状不变</span>、<span style=" text-decoration:underline ; ">大小不变</span>。 钟摆的运动是<span style=" text-decoration:underline ; ">旋转</span>。<br><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第四单元 乘法</font></span></div><br><span style=" font-weight:bold; ">[本单元知识点]1、</span>两位数乘整十数、2两位数乘两位数的笔算3两位数乘两位数的<span style=" font-weight:bold; ">估算</span>。4、应用。<br><br><span style=" font-weight:bold; ">[记忆]</span>1、两位数乘两位数积可能是<span style=" text-decoration:underline ; ">三位数</span>，也可能是<span style=" text-decoration:underline ; ">四位数</span>。 2、验算：交换两个乘数的位置。<br><br>★连乘应用题。38页第6题、39页第4题等。<br><br>数量关系式：每箱牛奶的瓶数×箱数=牛奶的瓶数 单价×数量=总价<br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第五单元 观察物体（略）</font></span></div><br><span style=" font-weight:bold; "></span><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第六单元 千米和吨</font></span></div><br><span style=" font-weight:bold; ">1、长度单位有：</span><span style=" font-weight:bold; text-decoration:underline ; ">毫米、厘米、分米、米、千米</span><span style=" font-weight:bold; "> 进率：</span><span style=" font-weight:bold; text-decoration:underline ; ">1千米=1000米</span><span style=" font-weight:bold; text-decoration:underline ; "></span><br><br><span style=" font-weight:bold; ">数量式：</span>跑道一卷的长度×圈数=跑步的距离<br><br><span style=" font-weight:bold; ">2、质量单位有：</span><span style=" font-weight:bold; text-decoration:underline ; ">克、千克、吨 </span><span style=" font-weight:bold; "> 进率：</span><span style=" font-weight:bold; text-decoration:underline ; ">1吨=1000千克</span><span style=" font-weight:bold; text-decoration:underline ; "></span><br><br><span style=" font-weight:bold; ">3、单位换算。</span>大单位换算成小单位（<span style=" font-weight:bold; ">乘它们之间的进率）</span>小单位换算成大单位（<span style=" font-weight:bold; ">除以它们之间的进率</span>）<br><br><span style=" font-weight:bold; "></span><br><div style="text-align: center;"><font color="#38761d"><span style="font-weight: bold;">第七单元轴对称</span><span style="font-weight: bold;">图形</span></font></div><br><span style=" font-weight:bold; ">1、对折后左右两边</span><span style=" font-weight:bold; ">完全重合</span><span style=" font-weight:bold; ">的图形是轴对称图形。</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">2、常见的轴对称图形有：长方形、正方形、圆形、等边三角形。</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">3、字母是轴对称图形的有：</span><span style=" text-decoration:underline ; ">A、B、C、D、E、H、I、 K、M、O、T、V、U、W、X、Y</span><span style=" font-weight:bold; ">。</span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; ">4、根据轴对称图形的一半，画出它的另一半。</span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第八单元认识分数</font></span></div><br>1、 单位“1”----- 一个物体或者几个物体<br><br>2、 分数：把一个物体或者几个物体平均分成若干份，表示其中1份或者几份。<br><br>3、 同分母分数的加减法。（分母不变，分子相加或相减。）<br><br>4、 总个数÷分母×分子=取出的个数 如：90个桃子的五分之三是多少？<br><br>5、 分子相同，分母小的分数大。 分母相同，分子大的分数大。<br><br>6、 三（1）班有男生20人，女生25人。男生人数占女生人数的<span style="text-decoration: underline;"> </span>，男生人数占全班人数的<span style="text-decoration: underline;"> 。</span> <span style=" font-weight:bold; "> </span><span style=" font-weight:bold; "></span><br><br><span style=" font-weight:bold; "></span><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第九单元 长方形和正方形的面积</font></span></div><br><span style=" font-weight:bold; ">1、公式：（见表格）</span><span style=" font-weight:bold; "></span><br><br>2、边长1厘米的正方形，面积是1平方厘米；边长1分米的正方形，面积是1平方分米；边长1米的正方形，面积是1平方米。<br><br>
<table width="80%" border="1"><tbody><tr><td><br><br></td><td><br>长 方 形<br></td><td><br>正 方 形<br></td></tr><tr><td><br>面 积<br></td><td><br>长×宽=面积 <br></td><td><br>边长×边长=面积<br></td></tr><tr><td><br>周 长<br></td><td><br>（长+宽）×2=周长<br></td><td><br>边长×4=周长<br></td></tr><tr><td><br>边<br></td><td><br>面积÷长=宽<br><br>面积÷宽=长<br><br>周长÷2 — 长=宽<br><br>周长÷2 —宽=长<br></td><td><br>周长÷4=边长<br></td></tr></tbody></table>
<br>3、面积单位之间的进率：1平方分米=100平方厘米 1平方米=100平方分米<br><br>4、大单位换算小单位（<span style=" font-weight:bold; ">乘它们之间的进率</span>） <br><br>小单位换算大单位（<span style=" font-weight:bold; ">除以它们之间的进率</span>）<br><br>5、★86页思考题（动手分）<br><br>6、甲图形的面积比乙图形的面积大。但是他们的<span style=" font-weight:bold; ">周长相等</span>。<br><br>7、长度单位和面积单位的单位不同，无法比较。<br><br>8、用20个小棒拼成一个长方形，它的周长和面积各是多少？用20个边长1厘米的小正方形拼成一个长方形，它的周长和面积各是多少？（两种情况不一样）</div><div><br>
<table width="80%" border="1"><tbody><tr><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td></tr><tr><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td><td><br><br></td></tr></tbody></table>
<br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第十单元 统计</font></span></div><br>1、求平均数的方法：</div><div><br></div><div> 1、移多补少 </div><div><br></div><div> 2、总数÷人数（份数）=平均数<br><br>2、运动与身体的变化。运动后人的脉搏会加快。休息几分钟后会恢复到正常状态。<span style=" font-weight:bold; "></span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">第十一单元认识小数</font></span></div><br>1、 十分之几就等于零点几。</div><div><br></div><div>2、小数的读法和写法。</div><div><br></div><div>3、小数大小的比较。</div><div><br></div><div>4、小数的加减法。<br><br>5、 0既是自然数也是整数。</div><div><br></div><div>6、小数不一定比整数小。<span style=" font-weight:bold; "></span><br><br></div>
三年级下