当前位置:网站首页 >> 文档 >> 铺地砖教学反思(6篇)

铺地砖教学反思(6篇)

格式:DOC 上传日期:2024-12-04 19:40:02
铺地砖教学反思(6篇)
    小编:admin

无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面是小编帮大家整理的优质范文,仅供参考,大家一起来看看吧。

铺地砖教学反思篇一

本课是生活中的数学问题——铺地砖。例题中给出了小明卧室的长和宽以及地砖规格和单价。其中卧室的单位是米,地砖的单位是厘米,单位不统一涉及到单位换算。本课要求学生解决三个问题:(1)用边长为40cm的正方形地砖铺满整个地面,至少需要多少块这样的地砖?需要多少元?(2)用边长为30cm的正方形地砖铺满整个地面,至少需要多少块这样的地砖?需要多少元?(3)小明爸爸妈妈的房间面积约为18m2,用边长40cm的正方形地砖铺地面,至少需要多少块这样的地砖?需要多少元?

问题1和问题2都是运用多种方法计算地砖的块数(有三种方法)。即:

卧室面积÷一块地砖面积=地砖块数 一排地砖数×排数=地砖块数

一块地砖面积×地砖块数=卧室面积。

前两种方法是算术方法(也是估计方法),第三种是方程。

在计算之前,要让学生估计地砖块数(这是本课的教学难点)。第一个问题作为例题处理,第二个问题作为巩固题处理并且涉及到地砖不是整块数时要采用进一法处理。第三个问题比例题还要简单。

学生在三年级下册学过铺地砖,重点是弄清平方米与平方分米之间的换算关系。由于时间关系,学生多数已经遗忘了是怎样铺地砖的。长度单位和面积单位换算进率混淆。另外,在学习本课之前,学生学习了长方形、正方形、三角形、平行四边形和梯形以及解方程。计算图形的面积没有问题,但是找等量关系列方程比较困难,多数学生怕麻烦,喜欢用算术方法解决问题。

1、通过自主学习,在观察比较中获得新知。

2、学数学用数学,体会数学与生活的紧密联系。

3、运用现代教育手段突破难点。

1、综合运用图形面积、乘除法、方程等知识解决铺地砖问题,进一步了解数学在生活中的应用。

2、进一步增强估算意识,提高估算能力。

3、通过铺地砖活动,认识到要从实际需要出发,合理选择所需的地砖。

:目标一

:估计地砖的块数。

:理解地砖是怎样铺的。

本课教学设计流程为为:揭题——复习——探究新知——巩固练习——拓展——全课总结

课开始直奔主题,揭示课题,然后利用课件复习怎样铺地砖,这样既理解地砖是怎样铺的,又得出了估算的方法。

新课教学时,让学生观察图画找信息提问题。其中把书上的第三个问题改为“用哪种地砖便宜,便宜多少钱?”。第一个问题作为例题处理,利用课件先估算地砖块数,再独立精确计算。担心学生不用方程解,所以提出“看谁的方法多”。学生可能会出现三种方法解决,即:用大面积除以小面积,用一排地砖数乘排数或用方程。学生汇报方法时教师引导学生说解题思路,并板书出数量关系式。最后说说自己喜欢哪一种方法,并说说喜欢的理由。教师小结后,学生独立完成第二个问题,重点引导地砖不是整块数时该怎么办?第三个问题与1、2题相同且更简单,所以改为“用哪一种地砖铺地面便宜些?便宜多少元?”这个问题可采用口答完成。

课末如果有时间,可进一步拓展,讨论“有没有其他方法计算哪种地砖更省钱?如果有,把它写下来。如果没有时间,可作为第二课时的内容。

最后是全课小结。

: 教师(课件) 学生:预习数学书、了解生活中是怎样铺地砖的。

本课的难点是估计地砖的块数,突破这一点关键就是理解地砖是怎样铺的。所以课件演示铺地砖会突破难点。也为新课教学作了很好的铺垫。学生课外了解铺地砖,既帮助理解新知,也获得了必要的课外知识。

板书设计:三种方法并排,三个数量关系式写出来,便于学生观察比较和运用。

一、揭题

1、前段时间我们学习了图形面积计算、乘除法、方程等知识。这节课,我们就运用这些知识来解决生活中的铺地砖问题。(板书课题:铺地砖)

2、你知道生活中人们是怎样铺地砖的吗?

3、(出示课件)这是一个长方形地面,这是地砖的规格。你认为该怎么铺?估计一排可以铺几块?可以铺几排?估计这个地面可以铺多少块?

小结:我们知道了地砖是一排一排的铺的,而且还知道怎样估计地砖的块数。

二、探究新知

1、小明家最近买了一套新房,爸爸准备给小明的卧室铺上地砖。要铺地砖,首先要了解什么?

2、(课件出示主题图)请大家观察图画,你发现了那些数学信息?

3、你能根据这些数学信息提出哪些数学问题?

4、今天这节课,咱们就解决这三个问题?(课件出示问题)。请大家齐读这三个问题。

5、现在我们来解决第一个问题。默读题,你知道了什么?(理解铺满、至少)

6、估计大约要多少块转?(课件展示估计过程)

7、你能运用以前学过的知识准确地计算出地砖的块数吗?独立计算,看谁的方法多。

8、汇报,引导学生说解题思路板书数量关系式。

方法一: 方法二: 方法三:

400×300÷(40×40) 400÷40×(300÷40) 解:设至少需要边长40cm的地砖x块。

=120000÷1600 =10×7.5 (40×40)x=400×300

=75(块) =75(块) x=75

答:至少需要75块。

9、你喜欢哪种方法,为什么?

10、齐读数量关系式。

小结:通过学习,我们知道了计算地砖块数的方法很多。以后我们在解决这类问题时要认真读题弄清数量之间的关系,灵活运用这些方法。

三、巩固练习

1、现在我们来解决第二个问题,有信心完成吗?看谁完成得又对又快。

2、汇报。追问:为什么要≈134块?

小结:当地砖不是整块时,我们要采用收尾法。

四、拓展练习

讨论:有没有其他方法计算哪种地砖更省钱?如果有,把它写下来

五、全课总结

同学们,这节课我们解决了什么问题?你有什么收获?

板书设计:

铺地砖

方法一: 方法二: 方法三:

卧室面积÷一块地砖面积=地砖块数 一排地砖数×排数=地砖块数 一块地砖面积×地砖块数=卧室面积

400×300÷(40×40) 400÷40×(300÷40) 解:设至少需要边长40cm的地砖x块。

=120000÷1600 =10×7.5 (40×40)x=400×300

=75(块) =75(块) 1600 x=120000

x=75

答:至少需要75块地砖,需要600元。

铺地砖教学反思篇二

教学目标:

知识与技能:

1、学习综合应用图形面积、乘除法、方程等知识解决简单的实际问题,加深对所学相关知识的理解,提高综合运用水平。

2、进一步增强估算意识,提高估算能力。

过程与方法:

让学生在独立思考与合作交流的过程中提高应用所学知识解决实际问题的能力。

情感态度与价值观:

进一步了解数学在生活中的应用,并在实践中对学生进行美育渗透。

教学重点:学习综合应用图形面积、乘除法、方程等知识解决简单的实际问题,加深对所学相关知识的理解,提高综合运用水平。

教学难点:估计地砖块数的方法。

教学用具:多媒体课件 卧室平面图及两个小正方形卡片

教学过程

一、情境引入:

(课件出示:工人师傅铺地砖)工人师傅在干什么?笑笑家也打算铺地砖。他们全家在建材市场选中每块8元50cm×50cm规格的地板砖,和每块5元40cm×40cm规格的地板砖。请你们帮她家算一算,你愿意吗?

二、自主探究

1、分析问题:(课件出示)现有两种规格的地砖:第一种:40cm×40cm,每块5元;第二种:50cm×50cm,每块8元。

师:你还需要什么条件才能计算出所需的砖的块数?

生:小明家的卧室的长是多少米,宽是多少米。

(课件出示)小明家的卧室的长是5米,宽是4米。

师质疑:40cm×40cm表示什么有意思?

2、解决问题一:在铺之前,老师想请同学们先来估算一下,这两种地砖各需要多少块?可以利用学具(卧室平面图及两个代表方形地砖的小正方形)摆一摆,拼一拼。

生:125块,因为一平方米大约能铺6块,客厅20平方米,所以能铺100多块,第二种地砖大约需80块。

生:利用平面图摆一摆,长可以摆10块,宽可以摆12块多,估计共需要120多块地砖。

师:那大家估的准不准呢?我们就来实际计算一下,在计算之前那位同学可以给大家温馨提示?

生:温馨提示:计算要细心,计算要准确。

注意平方米和平方厘米的换算,单位要统一。

师:请同学们小组讨论一下如何计算。计算用边长为40cm的正方形地砖铺满整个卧室,至少需要多少块这样的地砖?需要多少元?如果遇到困难可以看书中93页的内容。

学生先独立完成,老师巡视,交流时让学生说说是用什么方法计算的,结果是多少?

生1:可以用客厅的面积除以一块地砖的面积。

生2:看1平方米能能铺多少块,再看有多少平方米。

生3:用方程解,设需要x块这样的地砖。

生4:可以看长能铺多少块,宽能铺多少块再乘起来。

3、解决问题二:把学生做的多种方法拿来投影。喜欢哪一种方法,就用自己比较喜欢的方法来计算第二种地砖要多少块?多少元钱?

质疑:假如用卧室的面积除以一块砖的面积的结果不是整数,该怎么办?(让学生明确这时要利用进一法来取近似值。)

3、方案对比:你会选择哪种方砖铺地,为什么?

建议:在日常生活中我们铺地砖的时候是选择美观又便宜的地砖。

三、巩固练习

1、笑笑家客厅的长是6米,宽是4米,有四种规格的地砖,边长20cm每块2元;边长30cm每块5元;边长40cm每块8元;边长50cm每块13元。你会选哪种?小组合作学习。提示:讲清设计理由,互查计算结果,讲述喜欢的方案。

2、判断题:

(1)在同一块地面上所用地砖的面积越大,使用的`地砖块数越多。( )

(2)4块完全相同的方砖一定能拼成一个大正方形。( )

(3)边长为50分米的方砖面积是2500平方米。( )

四、总结:

同学们能够利用所学的平面图形面积及乘除法有关的知识解决了铺地砖这一实际问题,可见数学在实践中真的在发挥着作用和价值。

我们还想出了不同的铺设方法,可见你们是多么善于动脑、乐于创新的孩子呀!

五、作业安排

完成书p93“试一试”

六、板书设计:

铺地砖

房间的面积÷一块砖的面积 方程:

5×4÷(0.5×0.5) 一块地砖的面积×块数=房间的面积

长铺的块数×宽铺的块数 0.5×0.5×x=5×4

(5÷0.5)×(4÷0.5)

铺地砖教学反思篇三

����1��ê¹ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ó¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ø½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

����2��ê¹ñ§ï¿½ï¿½ï¿½úºï¿½ï¿½ï¿½ï¿½ï¿½ì½ï¿½ï¿½ï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ê¶ï¿½ï¿½

����3����êµï¿½ï¿½ï¿½ð¶ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¶ï¿½í´ï¿½ï¿½â¾ï¿½ï¿½ï¿½

����ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é¾°ï¿½ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½

���������������巿��è»ï¿½ï¿½ëµò»ëµï¿½ï¿½òµä¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ãµä£ï¿½ï¿½ó¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é¾°ï¿½ð¡ï¿½

������������öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

��������1��ð¡ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½â¼ï¿½ï¿½ë£ï¿½ï¿½ï¿½ï¿½ö°ï¿½ï¿½ï¿½ï¿½ú¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ê²ã´ï¿½ø£ï¿½ï¿½ö°ö°ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì¸ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ê²ã´ï¿½ø£ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½80��80�äµï¿½×©ï¿½ï¿½ï¿½ù¿é£¿

����[ñ§ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä£ï¿½ï¿½ï¿½ï¿½ï¿½è£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½á·½ï¿½ï¿½]

��������2��ð¡ï¿½ï¿½ï¿½òµä²ï¿½ï¿½ï¿½ò²ï¿½ç³ï¿½ï¿½ï¿½ï¿½îµä£ï¿½ï¿½ï¿½420���ף���400���ף���40��40�äµï¿½×©ï¿½ï¿½ï¿½ì£ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ù¿é£¿

����[��ê¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ß»ò¼¸±ß²ï¿½ï¿½ü¸õºï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½]

��������3��ð¡ï¿½ï¿½ï¿½ä°ö°ï¿½ï¿½ï¿½ï¿½ú¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½20���׵ä´ï¿½ï¿½ï¿½ê¯ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½×©ï¿½ï¿½ï¿½ì£ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ù¿é£¿

����[ñ§ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½]

��������4������æ½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ñ¡ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ä£¬ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½

����[ñ§ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ï¿½æ·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½]

���������ø¹ï¿½ð¡ï¿½á£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

���������ê£ï¿½í¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä»î¶¯ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½õ»ï¿½

�������ü½ï¿½ì¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð»í¬ñ§ï¿½ï¿½îªï¿½ï¿½ê¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã´ï¿½á¸»ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½ï¿½×°ï¿½ï¿½ê±ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¬ñ§ï¿½çµä½ï¿½ï¿½é¡£í¬ê±×£ô¸ï¿½ï¿½ï¿½ï¿½ü¸ï¿½ï¿½ï¿½ï¿½ø°ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ñ§öªê¶ï¿½ãµï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð£ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

铺地砖教学反思篇四

1、使学生能灵活应用面积计算的知识,合理地解决铺地砖的实际问题

2、使学生在合作、探索和实践中体会数学与生活的联系,感受数学的作用与价值,逐步培养学生的数学意识。

3、在实践中对学生进行美育渗透,培养学生的审美意识和创新精神。

一、创设情景、揭示课题

首先欣赏样板房,然后说一说你家的客厅是怎样布置的?从而揭题进入解决问题的情景中。

二、运用知识解决问题

问题1:小明家要搬新家了,他爸爸想在客厅里铺上地砖,具体该做些什么呢?爸爸把这个任务教给了小明。你认为小明该做些什么呢?需要购买80×80的地砖多少块?

[学生小组合作,模拟铺设,交流反馈,教师评析,小结方法]

问题2:小明家的餐厅也是长方形的,长420厘米,宽400厘米,用40×40的地砖来铺,你认为需要购买这样的地砖多少块?

[教师启发:在一边或几边不能刚好铺完而有剩余的情况下该怎样计算它的块数或行数?学生小组合作交流,探索解决的方法]

问题3:小明的爸爸想在客厅地面四周铺上宽是20厘米的大理石条,你认为可以选择哪种地砖来铺?需要购买多少块?

[学生:小组合作、模拟操作、探索解决的方法并交流反馈;教师适当评析并小结]

问题4:根据平面图,请各小组选择一个房间,设计一个铺地砖的方案。

[学生:小组选择,设计方案,交流反馈;教师适当评析]

三、回顾小结,交流体会

⑴提问:通过今天的活动,你有哪些收获?

⑵总结谈话:感谢同学们为老师设计了这么丰富的铺地砖方案,老师在装修时一定考虑同学们的建议。同时祝愿大家能更灵活地把所学的数学知识用到实际生活中,让数学真正为生活服务。

铺地砖教学反思篇五

������ñ§ä¿ï¿½ê£º

����öªê¶ï¿½ë¼¼ï¿½ü£ï¿½

����1��ñ§ï°ï¿½ûºï¿½ó¦ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½öªê¶ï¿½ï¿½ï¿½ï¿½òµ¥µï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ûºï¿½ï¿½ï¿½ï¿½ï¿½ë®æ½ï¿½ï¿½

����2����ò»ï¿½ï¿½ï¿½ï¿½ç¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ß¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

���������뷽����

������ñ§ï¿½ï¿½ï¿½ú¶ï¿½ï¿½ï¿½ë¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ó¦ï¿½ï¿½ï¿½ï¿½ñ§öªê¶ï¿½ï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

�������ì¬ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½û£ï¿½

������ò»ï¿½ï¿½ï¿½ë½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ðµï¿½ó¦ï¿½ã£ï¿½ï¿½ï¿½ï¿½ï¿½êµï¿½ï¿½ï¿½ð¶ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¸ï¿½ï¿½

������ñ§ï¿½øµã£ºñ§ï°ï¿½ûºï¿½ó¦ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½öªê¶ï¿½ï¿½ï¿½ï¿½òµ¥µï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ûºï¿½ï¿½ï¿½ï¿½ï¿½ë®æ½ï¿½ï¿½

������ñ§ï¿½ñµã£ºï¿½ï¿½ï¿½æµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½

������ñ§ï¿½ã¾ß£ï¿½ï¿½ï¿½ã½ï¿½ï¿½î¼ï¿½ ����æ½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½î¿ï¿½æ¬

������ñ§ï¿½ï¿½ï¿½ï¿½

����ò»ï¿½ï¿½ï¿½é¾³ï¿½ï¿½ï¿½ë£º

�������î¼ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ú¸ï¿½ê²ã´ï¿½ï¿½ð¦ð¦ï¿½ï¿½ò²ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½è«ï¿½ï¿½ï¿½ú½ï¿½ï¿½ï¿½ï¿½ð³ï¿½ñ¡ï¿½ï¿½ã¿ï¿½ï¿½8ôª50cm��50cm���äµø°ï¿½×©ï¿½ï¿½ï¿½ï¿½ã¿ï¿½ï¿½5ôª40cm��40cm���äµø°ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ç°ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ã£¬ï¿½ï¿½ô¸ï¿½ï¿½ï¿½ï¿½

������������ì½ï¿½ï¿½

����1���������⣺���î¼ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö¹ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ï¿½ò»ï¿½ö£ï¿½40cm��40cm��ã¿ï¿½ï¿½5ôªï¿½ï¿½ï¿½ú¶ï¿½ï¿½ö£ï¿½50cm��50cm��ã¿ï¿½ï¿½8ôªï¿½ï¿½

����ê¦ï¿½ï¿½ï¿½ã»¹ï¿½ï¿½òªê²ã´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ü¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½

��������ð¡ï¿½ï¿½ï¿½òµï¿½ï¿½ï¿½ï¿½òµä³ï¿½ï¿½ç¶ï¿½ï¿½ï¿½ï¿½×£ï¿½ï¿½ï¿½ï¿½ç¶ï¿½ï¿½ï¿½ï¿½×¡ï¿½

�������î¼ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ð¡ï¿½ï¿½ï¿½òµï¿½ï¿½ï¿½ï¿½òµä³ï¿½ï¿½ï¿½5�ף�����4�ס�

����ê¦ï¿½ï¿½ï¿½é£ï¿½40cm��40cm��ê¾ê²ã´ï¿½ï¿½ï¿½ï¿½ë¼ï¿½ï¿½

����2���������ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö®ç°ï¿½ï¿½ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ï¿½í¬ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½â£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½×©ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ù¿é£¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ß£ï¿½ï¿½ï¿½ï¿½ï¿½æ½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îµï¿½×©ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½î£ï¿½ï¿½ï¿½ò»ï¿½ú£ï¿½æ´ò»æ´ï¿½ï¿½

��������125�飬��îªò»æ½ï¿½ï¿½ï¿½×´ï¿½ô¼ï¿½ï¿½ï¿½ï¿½6�飬����20æ½ï¿½ï¿½ï¿½×£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½100��飬�ú¶ï¿½ï¿½öµï¿½×©ï¿½ï¿½ô¼ï¿½ï¿½80�顣

������������æ½ï¿½ï¿½í¼ï¿½ï¿½ò»ï¿½ú£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ô°ï¿½10�飬�����ô°ï¿½12��࣬���æ¹ï¿½ï¿½ï¿½òª120����ש��

����ê¦ï¿½ï¿½ï¿½ç´ï¿½ò¹ï¿½ï¿½ï¿½×¼ï¿½ï¿½×¼ï¿½ï¿½?���ç¾ï¿½ï¿½ï¿½êµï¿½ê¼ï¿½ï¿½ï¿½ò»ï¿½â£ï¿½ï¿½ú¼ï¿½ï¿½ï¿½ö®ç°ï¿½ï¿½î»í¬ñ§ï¿½ï¿½ï¿½ô¸ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ü°ï¿½ï¿½ê¾ï¿½ï¿½

����������ü°ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¸ï¿½ä£ï¿½ï¿½ï¿½ï¿½ï¿½òª×¼è·ï¿½ï¿½

����ע��æ½ï¿½ï¿½ï¿½×ºï¿½æ½ï¿½ï¿½ï¿½ï¿½ï¿½×µä»ï¿½ï¿½ã£¬ï¿½ï¿½î»òªí³ò»ï¿½ï¿½

����ê¦ï¿½ï¿½ï¿½ï¿½í¬ñ§ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½î¼ï¿½ï¿½ã¡£ï¿½ï¿½ï¿½ï¿½ï¿½ã±ß³ï¿½îª40cm�������îµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ù¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ôªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ¿ï¿½ï¿½ô¿ï¿½ï¿½ï¿½ï¿½ï¿½93ò³ï¿½ï¿½ï¿½ï¿½ï¿½ý¡ï¿½

����ñ§ï¿½ï¿½ï¿½è¶ï¿½ï¿½ï¿½ï¿½ï¿½é£ï¿½ï¿½ï¿½ê¦ñ²ï¿½ó£ï¿½ï¿½ï¿½ï¿½ï¿½ê±ï¿½ï¿½ñ§ï¿½ï¿½ëµëµï¿½ï¿½ï¿½ï¿½ê²ã´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä£ï¿½ï¿½ï¿½ï¿½ï¿½ç¶ï¿½ï¿½ù£ï¿½

������1�������ã¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

������2����1æ½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì¶ï¿½ï¿½ù¿é£¬ï¿½ù¿ï¿½ï¿½ð¶ï¿½ï¿½ï¿½æ½ï¿½ï¿½ï¿½×¡ï¿½

������3���ã·ï¿½ï¿½ì½â£¬ï¿½ï¿½ï¿½ï¿½òªx�������äµï¿½×©ï¿½ï¿½

������4�����ô¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì¶ï¿½ï¿½ù¿é£¬ï¿½ï¿½ï¿½ï¿½ï¿½ì¶ï¿½ï¿½ù¿ï¿½ï¿½ù³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

����3��������������ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ä¶ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½í¶ó°ï¿½ï¿½ï²ï¿½ï¿½ï¿½ï¿½ò»ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ô¼ï¿½ï¿½è½ï¿½ï²ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú¶ï¿½ï¿½öµï¿½×©òªï¿½ï¿½ï¿½ù¿é£¿ï¿½ï¿½ï¿½ï¿½ôªç®ï¿½ï¿½

�������é£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã´ï¿½ì£¿ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½è·ï¿½ï¿½ê±òªï¿½ï¿½ï¿½ã½ï¿½ò»ï¿½ï¿½ï¿½ï¿½è¡ï¿½ï¿½ï¿½ï¿½öµï¿½ï¿½ï¿½ï¿½

����3�������ô±è£ï¿½ï¿½ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ï¿½ï¿½ö·ï¿½×©ï¿½ìµø£ï¿½îªê²ã´ï¿½ï¿½

�������飺���õ³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ê±ï¿½ï¿½ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö±ï¿½ï¿½ëµäµï¿½×©ï¿½ï¿½

��������������ï°

����1��ð¦ð¦ï¿½ò¿ï¿½ï¿½ï¿½ï¿½ä³ï¿½ï¿½ï¿½6�ף�����4�ף������ö¹ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ß³ï¿½20cmã¿ï¿½ï¿½2ôªï¿½ï¿½ï¿½ß³ï¿½30cmã¿ï¿½ï¿½5ôªï¿½ï¿½ï¿½ß³ï¿½40cmã¿ï¿½ï¿½8ôªï¿½ï¿½ï¿½ß³ï¿½50cmã¿ï¿½ï¿½13ôªï¿½ï¿½ï¿½ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ö£ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï°ï¿½ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï²ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½

����2���ð¶ï¿½ï¿½â£º

������1����í¬ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ãµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ô½ï¿½ï¿½ê¹ï¿½ãµï¿½`��ש����ô½ï¿½à¡£ï¿½ï¿½ ��

������2��4����è«ï¿½ï¿½í¬ï¿½ä·ï¿½×©ò»ï¿½ï¿½ï¿½ï¿½æ´ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½î¡ï¿½ï¿½ï¿½ ��

������3���߳�îª50���׵ä·ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½2500æ½ï¿½ï¿½ï¿½×¡ï¿½ï¿½ï¿½ ��

�����ä¡ï¿½ï¿½ü½á£º

����í¬ñ§ï¿½ï¿½ï¿½ü¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½æ½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë³ï¿½ï¿½ï¿½ï¿½ð¹øµï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ò»êµï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½é¼ï¿½ï¿½ï¿½ñ§ï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ãºí¼ï¿½öµï¿½ï¿½

�������ç»ï¿½ï¿½ï¿½ï¿½ï¿½ë²ï¿½í¬ï¿½ï¿½ï¿½ï¿½ï¿½è·½ï¿½ï¿½ï¿½ï¿½ï¿½é¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ç¶ï¿½ã´ï¿½ï¿½ï¿½ú¶ï¿½ï¿½ô¡ï¿½ï¿½ï¿½ï¿½ú´ï¿½ï¿½âµäºï¿½ï¿½ï¿½ñ½ï¿½ï¿½

�����塢��òµï¿½ï¿½ï¿½ï¿½

���������p93����ò»ï¿½ô¡ï¿½

��������������æ£ï¿½

�����ìµï¿½×©

��������������ò»ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ ���ì£ï¿½

����5��4�â£ï¿½0.5��0.5�� ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½=��������

�������ìµä¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµä¿ï¿½ï¿½ï¿½ 0.5��0.5��x��5��4

������5��0.5������4��0.5��

铺地砖教学反思篇六

����

���������������ðµï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½â¡ªï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð¸ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½òµä³ï¿½ï¿½í¿ï¿½ï¿½ô¼ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½íµï¿½ï¿½û¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òµäµï¿½î»ï¿½ï¿½ï¿½×£ï¿½ï¿½ï¿½×©ï¿½äµï¿½î»ï¿½ï¿½ï¿½ï¿½ï¿½×£ï¿½ï¿½ï¿½î»ï¿½ï¿½í³ò»ï¿½æ¼°ï¿½ï¿½ï¿½ï¿½î»ï¿½ï¿½ï¿½ã¡£ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£ºï¿½ï¿½1���ã±ß³ï¿½îª40cm�������îµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ù¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ôªï¿½ï¿½ï¿½ï¿½2���ã±ß³ï¿½îª30cm�������îµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ù¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ôªï¿½ï¿½ï¿½ï¿½3��ð¡ï¿½ï¿½ï¿½ö°ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ô¼îª18m2���ã±ß³ï¿½40cm�������îµï¿½×©ï¿½ìµï¿½ï¿½æ£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ù¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ôªï¿½ï¿½

��������1������2�������ã¶ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

�������������ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½=��ש���� ò»ï¿½åµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½=��ש����

����ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½=���������

����ç°ï¿½ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò²ï¿½ç¹ï¿½ï¿½æ·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ç·ï¿½ï¿½ì¡ï¿½

�����ú¼ï¿½ï¿½ï¿½ö®ç°ï¿½ï¿½òªï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½æµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ç±ï¿½ï¿½îµä½ï¿½ñ§ï¿½ñµã£©ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½â´¦ï¿½ï¿½ï¿½ï¿½ï¿½ú¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½ï¿½ï¿½â´¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ¼°ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê±òªï¿½ï¿½ï¿½ã½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â»¹òªï¿½òµ¥¡ï¿½

����

����ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¼¶ï¿½â²ï¿½ñ§ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½øµï¿½ï¿½ï¿½åªï¿½ï¿½æ½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æ½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö®ï¿½ï¿½ä»ï¿½ï¿½ï¿½ï¿½ïµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê±ï¿½ï¿½ï¿½ïµï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ä¡ï¿½ï¿½ï¿½ï¿½èµï¿½î»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½î»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ñ§ï°ï¿½ï¿½ï¿½ï¿½ö®ç°ï¿½ï¿½ñ§ï¿½ï¿½ñ§ï°ï¿½ë³ï¿½ï¿½ï¿½ï¿½î¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½î¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½î¡ï¿½æ½ï¿½ï¿½ï¿½ä±ï¿½ï¿½îºï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ô¼ï¿½ï¿½â·½ï¿½ì¡ï¿½ï¿½ï¿½ï¿½ï¿½í¼ï¿½îµï¿½ï¿½ï¿½ï¿½ã»ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ï¿½òµï¿½ï¿½ï¿½ï¿½ï¿½ïµï¿½ð·ï¿½ï¿½ì±è½ï¿½ï¿½ï¿½ï¿½ñ£ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½é·³ï¿½ï¿½ï²ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â¡£

����

����1��í¨ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï°ï¿½ï¿½ï¿½ú¹û²ï¿½è½ï¿½ï¿½ð»ï¿½ï¿½ï¿½ï¿½öªï¿½ï¿½

����2��ñ§ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ä½ï¿½ï¿½ï¿½ï¿½ï¿½ïµï¿½ï¿½

����3�������ö´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö¶ï¿½í»ï¿½ï¿½ï¿½ñµã¡£

����

����1���ûºï¿½ï¿½ï¿½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ò»ï¿½ï¿½ï¿½ë½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ðµï¿½ó¦ï¿½ã¡ï¿½

����2����ò»ï¿½ï¿½ï¿½ï¿½ç¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½ï¿½ï¿½ß¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

����3��í¨ï¿½ï¿½ï¿½ìµï¿½×©ï¿½î¶¯ï¿½ï¿½ï¿½ï¿½ê¶ï¿½ï¿½òªï¿½ï¿½êµï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½äµï¿½×©ï¿½ï¿½

������ä¿ï¿½ï¿½ò»

���������æµï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½

�����������ש�������ìµä¡ï¿½

����

�������î½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªîªï¿½ï¿½ï¿½ï¿½ï¿½â¡ªï¿½ï¿½ï¿½ï¿½ï°ï¿½ï¿½ï¿½ï¿½ì½ï¿½ï¿½ï¿½ï¿½öªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï°ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½õ¹ï¿½ï¿½ï¿½ï¿½è«ï¿½ï¿½ï¿½ü½ï¿½

�����î¿ï¿½ê¼ö±ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ê¾ï¿½ï¿½ï¿½â£¬è»ï¿½ï¿½ï¿½ï¿½ï¿½ã¿î¼ï¿½ï¿½ï¿½ï°ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµä£ï¿½ï¿½öµã³ï¿½ï¿½ë¹ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ï¿½

�����â¿î½ï¿½ñ§ê±ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½û²ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¢ï¿½ï¿½ï¿½ï¿½ï¿½â¡£ï¿½ï¿½ï¿½ð°ï¿½ï¿½ï¿½ï¿½ïµäµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½×©ï¿½ï¿½ï¿½ë£ï¿½ï¿½ï¿½ï¿½ë¶ï¿½ï¿½ï¿½ç®ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½â´¦ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã¿î¼ï¿½ï¿½è¹ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ù¶ï¿½ï¿½ï¿½ï¿½ï¿½è·ï¿½ï¿½ï¿½ã¡£ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ã·ï¿½ï¿½ì½â£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë­ï¿½ä·ï¿½ï¿½ï¿½ï¿½à¡±ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ü»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½åµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã·ï¿½ï¿½ì¡ï¿½ñ§ï¿½ï¿½ï¿½ã±¨ï¿½ï¿½ï¿½ï¿½ê±ï¿½ï¿½ê¦ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ëµï¿½ï¿½ï¿½ï¿½ë¼â·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµê½ï¿½ï¿½ï¿½ï¿½ï¿½ëµëµï¿½ô¼ï¿½ï²ï¿½ï¿½ï¿½ï¿½ò»ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ëµëµï²ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é¡ï¿½ï¿½ï¿½ê¦ð¡ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½éµú¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½øµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê±ï¿½ï¿½ï¿½ï¿½ã´ï¿½ì£¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½1��2����í¬ï¿½ò¸ï¿½ï¿½òµ¥£ï¿½ï¿½ï¿½ï¿½ô¸ï¿½îªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½öµï¿½×©ï¿½ìµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½ï¿½ï¿½ï¿½ï¿½ë¶ï¿½ï¿½ï¿½ôªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½é²ï¿½ï¿½ã¿ú´ï¿½ï¿½ï¿½é¡ï¿½

������ä©ï¿½ï¿½ï¿½ï¿½ï¿½ê±ï¿½ä£¬ï¿½é½ï¿½ò»ï¿½ï¿½ï¿½ï¿½õ¹ï¿½ï¿½ï¿½ï¿½ï¿½û¡ï¿½ï¿½ï¿½ã»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½×©ï¿½ï¿½ê¡ç®ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð£ï¿½ï¿½ï¿½ï¿½ï¿½ð´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã»ï¿½ï¿½ê±ï¿½ä£¬ï¿½ï¿½ï¿½ï¿½îªï¿½ú¶ï¿½ï¿½ï¿½ê±ï¿½ï¿½ï¿½ï¿½ï¿½ý¡ï¿½

���������è«ï¿½ï¿½ð¡ï¿½á¡£

������ ��ê¦ï¿½ï¿½ï¿½î¼ï¿½ï¿½ï¿½ ñ§ï¿½ï¿½ï¿½ï¿½ô¤ï°ï¿½ï¿½ñ§ï¿½é¡¢ï¿½ë½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ä¡ï¿½

�������îµï¿½ï¿½ñµï¿½ï¿½ç¹ï¿½ï¿½æµï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½í»ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ø¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµä¡ï¿½ï¿½ï¿½ï¿½ô¿î¼ï¿½ï¿½ï¿½ê¾ï¿½ìµï¿½×©ï¿½ï¿½í»ï¿½ï¿½ï¿½ñµã¡£ò²îªï¿½â¿î½ï¿½ñ§ï¿½ï¿½ï¿½ëºüºãµï¿½ï¿½ìµæ¡£ñ§ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ë½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½è°ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öªï¿½ï¿½ò²ï¿½ï¿½ï¿½ï¿½ë±ï¿½òªï¿½ä¿ï¿½ï¿½ï¿½öªê¶ï¿½ï¿½

����������æ£ï¿½ï¿½ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½å£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµê½ð´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï¿½ï¿½ï¿½û²ï¿½è½ïºï¿½ï¿½ï¿½ï¿½ã¡ï¿½

����

����ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

����1��ç°ï¿½ï¿½ê±ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ñ§ï°ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã¡¢ï¿½ë³ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½öªê¶ï¿½ï¿½ï¿½ï¿½ú¿î£ï¿½ï¿½ï¿½ï¿½ç¾ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©öªê¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ðµï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½â¡£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£ºï¿½ìµï¿½×©ï¿½ï¿½

����2����öªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½

����3������ê¾ï¿½î¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îµï¿½ï¿½æ£¬ï¿½ï¿½ï¿½çµï¿½×©ï¿½ä¹ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½îªï¿½ï¿½ï¿½ï¿½ã´ï¿½ì£ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½å¿ï¿½ï¿½ï¿½ï¿½ì¼ï¿½ï¿½é£¿ï¿½ï¿½ï¿½ï¿½ï¿½ì¼ï¿½ï¿½å£ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ì¶ï¿½ï¿½ù¿é£¿

����ð¡ï¿½á£ºï¿½ï¿½ï¿½ï¿½öªï¿½ï¿½ï¿½ëµï¿½×©ï¿½ï¿½ò»ï¿½ï¿½ò»ï¿½åµï¿½ï¿½ìµä£ï¿½ï¿½ï¿½ï¿½ò»ï¿½öªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½æµï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ï¿½

��������ì½ï¿½ï¿½ï¿½ï¿½öª

����1��ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ò»ï¿½ï¿½ï¿½â·ï¿½ï¿½ï¿½ï¿½ö°ï¿½×¼ï¿½ï¿½ï¿½ï¿½ð¡ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµï¿½×©ï¿½ï¿½òªï¿½ìµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ë½ï¿½ê²ã´ï¿½ï¿½

����2�����î¼ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ò¹û²ï¿½í¼ï¿½ï¿½ï¿½ï¿½ï¿½ã·¢ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½ï¿½ñ§ï¿½ï¿½ï¢ï¿½ï¿½

����3�����ü¸ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½ï¿½ñ§ï¿½ï¿½ï¢ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½ï¿½ñ§ï¿½ï¿½ï¿½â£¿

����4��������ú¿î£ï¿½ï¿½ï¿½ï¿½ç¾í½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£¿ï¿½ï¿½ï¿½î¼ï¿½ï¿½ï¿½ê¾ï¿½ï¿½ï¿½â£©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â¡£

����5�����������������ò»ï¿½ï¿½ï¿½ï¿½ï¿½â¡£ä¬ï¿½ï¿½ï¿½â£¬ï¿½ï¿½öªï¿½ï¿½ï¿½ï¿½ê²ã´ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ù£ï¿½

����6�����æ´ï¿½ô¼òªï¿½ï¿½ï¿½ù¿ï¿½×ªï¿½ï¿½ï¿½ï¿½ï¿½î¼ï¿½õ¹ê¾ï¿½ï¿½ï¿½æ¹ï¿½ï¿½ì£ï¿½

����7������������ç°ñ§ï¿½ï¿½ï¿½ï¿½öªê¶×¼è·ï¿½ø¼ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ä¿ï¿½ï¿½ï¿½ï¿½ð£¿¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ã£¬ï¿½ï¿½ë­ï¿½ä·ï¿½ï¿½ï¿½ï¿½à¡£

����8���㱨������ñ§ï¿½ï¿½ëµï¿½ï¿½ï¿½ï¿½ë¼â·ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ïµê½ï¿½ï¿½

��������ò»ï¿½ï¿½ �������� ��������

����400��300�â£ï¿½40��40�� 400��40����300��40�� �⣺��������òªï¿½ß³ï¿½40cm�äµï¿½×©x�顣

����=120000��1600 =10��7.5 ��40��40��x=400��300

����=75���飩 =75���飩 x=75

������������òª75�顣

����9����ï²ï¿½ï¿½ï¿½ï¿½ï¿½ö·ï¿½ï¿½ï¿½ï¿½ï¿½îªê²ã´ï¿½ï¿½

����10�����������ïµê½ï¿½ï¿½

����ð¡ï¿½á£ºí¨ï¿½ï¿½ñ§ï°ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öªï¿½ï¿½ï¿½ë¼ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ä·ï¿½ï¿½ï¿½ï¿½ü¶à¡£ï¿½ôºï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ú½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê±òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½åªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ö®ï¿½ï¿½ä¹ï¿½ïµï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

��������������ï°

����1����������������ú¶ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½â£¬ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð£¿¿ï¿½ë­ï¿½ï¿½éµï¿½ï¿½ö¶ï¿½ï¿½ö¿ì¡£

����2���㱨��׷�ê£ï¿½îªê²ã´òªï¿½ï¿½134�飿

����ð¡ï¿½á£ºï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ê±ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½òªï¿½ï¿½ï¿½ï¿½ï¿½ï¿½î²ï¿½ï¿½ï¿½ï¿½

�����ä¡ï¿½ï¿½ï¿½õ¹ï¿½ï¿½ï°

�������û£ï¿½ï¿½ï¿½ã»ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½öµï¿½×©ï¿½ï¿½ê¡ç®ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ð£ï¿½ï¿½ï¿½ï¿½ï¿½ð´ï¿½ï¿½ï¿½ï¿½

�����塢è«ï¿½ï¿½ï¿½ü½ï¿½

����í¬ñ§ï¿½ç£ï¿½ï¿½ï¿½ú¿ï¿½ï¿½ï¿½ï¿½ç½ï¿½ï¿½ï¿½ï¿½ê²ã´ï¿½ï¿½ï¿½â£¿ï¿½ï¿½ï¿½ï¿½ê²ã´ï¿½õ»ï¿½

����������æ£ï¿½

�����ìµï¿½×©

��������ò»ï¿½ï¿½ �������� ��������

�������������ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½=��ש���� ò»ï¿½åµï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½=��ש���� ò»ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½×©ï¿½ï¿½ï¿½ï¿½=�������

����400��300�â£ï¿½40��40�� 400��40����300��40�� �⣺��������òªï¿½ß³ï¿½40cm�äµï¿½×©x�顣

����=120000��1600 =10��7.5 ��40��40��x=400��300

����=75���飩 =75���飩 1600 x=120000

����x=75

������������òª75���ש����òª600ôªï¿½ï¿½

全文阅读已结束,如果需要下载本文请点击

下载此文档
猜你喜欢 网友关注 本周热点 精品推荐
总结是对某一特定时间段内的学习和工作生活等表现情况加以回顾和分析的一种书面材料,它能够使头脑更加清醒,目标更加明确,让我们一起来学习写总结吧。优秀的总结都具备一
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。大家想知道怎么样才能写一篇比较优质的范文吗?下面我给
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文怎么写才能发挥它最大的作用呢?下面我给大家整理了
拥有一个明确的计划可以增加我们的自信心,激发我们的积极性。计划的执行过程中,我们要及时跟踪和评估进展,及时调整和改进。下面是一些计划范例,供大家参考。首先,为了
每个人都曾试图在平淡的学习、工作和生活中写一篇文章。写作是培养人的观察、联想、想象、思维和记忆的重要手段。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?以下
一个好的计划可以使我们更加高效地完成任务。要写一篇较为完美的计划,首先需要明确计划的目标和预期成果。如果你正在制定计划,以下是一些案例和实例,可以给你一些创意和
报告是对某项事物或事件的详尽说明和分析。在撰写报告之前,应进行充分的前期准备和调研工作。在写报告时,我们应该注意语言的准确性和专业性,以便读者能够理解和接受我们
总结稿是一种对已经完成的事情进行总结和评价的重要工具。如何建立良好的团队合作精神,在集体中充分发挥自己的作用?希望大家能够对这些范文进行深入的研究和思考,借鉴其
计划是为了规划未来一段时间内的行动和目标。拟定计划时,我们需要制定相应的时间表和里程碑。下面是一些成功人士的计划范例,供大家参考借鉴。社区健康教育工作计划书篇一
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。那么我们该如何写一篇较为完美的范文呢?下面是小编为大
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。范文怎么写才能发挥它最大的作用呢?下面是小编帮大家整
如何做好亲子沟通,使父母和孩子之间的关系更加融洽?坚持锻炼身体是保持健康和追求美的重要途径。如果你有兴趣了解更多关于这个话题的信息,请点击下方链接进行查看。公司
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面我给大家整理了一些优
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。范文怎么写才能发挥它最大的作用呢?下面我给大家整理了
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下
每个人都曾试图在平淡的学习、工作和生活中写一篇文章。写作是培养人的观察、联想、想象、思维和记忆的重要手段。相信许多人会觉得范文很难写?这里我整理了一些优秀的范文
人的记忆力会随着岁月的流逝而衰退,写作可以弥补记忆的不足,将曾经的人生经历和感悟记录下来,也便于保存一份美好的回忆。范文怎么写才能发挥它最大的作用呢?以下是小编
随着个人素质的提升,报告使用的频率越来越高,我们在写报告的时候要注意逻辑的合理性。写报告的时候需要注意什么呢?有哪些格式需要注意呢?这里我整理了一些优秀的报告范
报告,汉语词语,公文的一种格式,是指对上级有所陈请或汇报时所作的口头或书面的陈述。报告的格式和要求是什么样的呢?下面我给大家整理了一些优秀的报告范文,希望能够帮
“报告”使用范围很广,按照上级部署或工作计划,每完成一项任务,一般都要向上级写报告,反映工作中的基本情况、工作中取得的经验教训、存在的问题以及今后工作设想等,以
人的记忆力会随着岁月的流逝而衰退,写作可以弥补记忆的不足,将曾经的人生经历和感悟记录下来,也便于保存一份美好的回忆。相信许多人会觉得范文很难写?下面是小编为大家
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。范文怎么写才能发挥它最大的作用呢?这里我整理了一些优秀的范文,希望对大家有
随着社会不断地进步,报告使用的频率越来越高,报告具有语言陈述性的特点。优秀的报告都具备一些什么特点呢?又该怎么写呢?下面是小编带来的优秀报告范文,希望大家能够喜
读后感是我们思考书籍意义和启示的过程,对我们的成长和思想触发有着重要意义。在写读后感时,可以从作品中选取一些重要情节和人物进行分析和讨论,深入挖掘作品的内涵和深
每个人都曾试图在平淡的学习、工作和生活中写一篇文章。写作是培养人的观察、联想、想象、思维和记忆的重要手段。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面
使用正确的写作思路书写演讲稿会更加事半功倍。在日常生活和工作中,能够利用到演讲稿的场合越来越多。演讲稿对于我们是非常有帮助的,可是应该怎么写演讲稿呢?下面我帮大
总结是在一段时间内对学习和工作生活等表现加以总结和概括的一种书面材料,它可以促使我们思考,我想我们需要写一份总结了吧。什么样的总结才是有效的呢?下面是我给大家整
每个人都曾试图在平淡的学习、工作和生活中写一篇文章。写作是培养人的观察、联想、想象、思维和记忆的重要手段。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。相信许多人会觉得范文很难写?这里我整理了一些优秀的范文,希望对大家有所帮助,下面我们就来了解一下吧。巷道支
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文怎么写才能发挥它最大的作用呢?以下是我为大家搜集
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。写范文的时候需要注意什么呢?有哪些格式需要注意呢?下
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?以下是我为大家搜集的优质范文,仅供参考,一起来看看吧计量
每个人都曾试图在平淡的学习、工作和生活中写一篇文章。写作是培养人的观察、联想、想象、思维和记忆的重要手段。范文怎么写才能发挥它最大的作用呢?下面我给大家整理了一
报告是指向上级机关汇报本单位、本部门、本地区工作情况、做法、经验以及问题的报告,报告对于我们的帮助很大,所以我们要好好写一篇报告。下面我给大家整理了一些优秀的报
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面我给大家整理了一些优秀范文,希望能够帮助到大家,我们
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?以下是我为大家搜集的优质
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。大家想知道怎么样才能写一篇比较优质的范文吗?下面是小编为大家收集的优秀范文,供大家参考借鉴,希望可以帮助到
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。大家想知道怎么样才能写一篇比较优质的范文吗?接下来小编就给大家介绍一下优秀的范文该怎么写,我们一起来看一看
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。写范文的时候需要注意什么呢?有哪些格式需要注意呢?下
我们在一些事情上受到启发后,应该马上记录下来,写一篇心得体会,这样我们可以养成良好的总结方法。我们想要好好写一篇心得体会,可是却无从下手吗?那么下面我就给大家讲
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。写范文的时候需要注意什么呢?有哪些格式需要注意呢?下面我给大家整理了一些优秀范文,希望能够帮助到大家,我们
每个人都有自己的目标和追求,为了实现这些目标,我们需要付出努力。作文的结尾要有总结性的陈述,对之前的内容进行概括和提炼。以下是一些好书的推荐,希望大家都能从中受
人的记忆力会随着岁月的流逝而衰退,写作可以弥补记忆的不足,将曾经的人生经历和感悟记录下来,也便于保存一份美好的回忆。写范文的时候需要注意什么呢?有哪些格式需要注
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文怎么写才能发挥它最大的作用呢?以下是小编为大家收
总结是对过去一定时期的工作、学习或思想情况进行回顾、分析,并做出客观评价的书面材料,它有助于我们寻找工作和事物发展的规律,从而掌握并运用这些规律,是时候写一份总
“心得体会是个人在学习、工作、生活等方面的经验和感悟的总结。”、“通过写心得体会可以更好地对自己的经历和成长进行回顾和总结。”、“心得体会是对自己在某一段时间内
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文怎么写才能发挥它最大的作用呢?以下是我为大家搜集
为了确保事情或工作得以顺利进行,通常需要预先制定一份完整的方案,方案一般包括指导思想、主要目标、工作重点、实施步骤、政策措施、具体要求等项目。大家想知道怎么样才
心得体会的撰写要求我们积极思考和总结,从中提炼出对自身有价值的收获和教训。写心得体会时,我们要注意语言的准确性和连贯性,避免使用模糊和含糊的词语。接下来,我们分
时间流逝得如此之快,我们的工作又迈入新的阶段,请一起努力,写一份计划吧。计划怎么写才能发挥它最大的作用呢?这里给大家分享一些最新的计划书范文,方便大家学习。技术
制定计划前,要分析研究工作现状,充分了解下一步工作是在什么基础上进行的,是依据什么来制定这个计划的。写计划的时候需要注意什么呢?有哪些格式需要注意呢?那么下面我
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下面是小编帮大家整理的优
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。大家想知道怎么样才能写一篇比较优质的范文吗?下面是小编为大家收集的优秀范文,供大家参考借鉴,希望可以帮助到
随着个人素质的提升,报告使用的频率越来越高,我们在写报告的时候要注意逻辑的合理性。大家想知道怎么样才能写一篇比较优质的报告吗?下面是小编为大家整理的报告范文,仅
阅读能够培养人们的语言表达能力和文化素养。学会正确阅读文章,对于提高语文水平很重要。以下是小编为大家收集的优秀范文,供大家参考学习。人力资源部篇一尊敬的公司领导
报告通常包括背景介绍、研究方法、主要发现和结论等内容。报告的结构要合理,要有明确的开篇、发展和总结,以保证思路的连贯性和逻辑性。以下是一份关于环境污染的报告范文
在当下社会,接触并使用报告的人越来越多,不同的报告内容同样也是不同的。那么我们该如何写一篇较为完美的报告呢?下面我给大家整理了一些优秀的报告范文,希望能够帮助到
一个好的方案应该能够解决现实生活中的问题并取得良好的效果。方案的制定需要给予足够的时间和资源,不可仓促行事。以下是小编为大家收集的经典方案范例,供大家参考和学习
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。那么我们该如何写一篇较为完美的范文呢?下面是小编为大家收集的优秀范文,供大家参考借鉴,希望可以帮助到有需要
一个好的方案应该能够解决问题并达到预期的效果。方案的提出应该基于对问题的充分理解和深入分析。方案的制定是一个循序渐进的过程,需要不断优化和完善。幼儿园游园活动方
报告的撰写需要充分收集、整理和分析相关资料和数据。在撰写报告之前,我们首先需要明确报告的目的和目标。有经验的写作人员常常通过学习和借鉴他人的报告范文来提高自己的
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。大家想知道怎么样才能写一篇比较优质的范文吗?以下是小编为大家收集的优秀范文,欢迎大家分享阅读。寄宿制小学宿
总结是对过去一段时间内的工作、学习或者生活进行系统性概括与总结的重要手段。写一篇完美的总结通过阅读这些总结范文,可以帮助我们更好地理解和把握总结的要领。初中班主
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。大家想知道怎么样才能写一篇比较优质的范文吗?下面是小编帮大家整理的优质范文
合同的签订应当遵循自愿、平等、合法、公平的原则。合同的撰写应该准确、明确,以避免后续产生的纠纷和争议。小编整理的合同样本力求简明扼要,希望对您的合同起到参考作用
总结能够促使我们反思过去的行为,不断提高自己的综合素质。当我们面对一个不确定的情况时,如何应对并处理它,是一个需要我们思考和解决的问题。我们为大家整理了一份高效
演讲稿可以适当使用一些修辞手法,如排比、反问等,以增强说服力。在撰写演讲稿时,要注意语气控制,用适当的表达方式与听众建立联系。这是一些引人深思的演讲稿,作者通过
总结是一个反思和思考的过程,对于个人和团队的发展具有重要意义。写总结时要注意适当使用统计数据和事例加以佐证。以下是一些实用的总结范文,希望能给您带来灵感。大学部
无论是身处学校还是步入社会,大家都尝试过写作吧,借助写作也可以提高我们的语言组织能力。大家想知道怎么样才能写一篇比较优质的范文吗?以下是我为大家搜集的优质范文,
人的记忆力会随着岁月的流逝而衰退,写作可以弥补记忆的不足,将曾经的人生经历和感悟记录下来,也便于保存一份美好的回忆。大家想知道怎么样才能写一篇比较优质的范文吗?
教案是教学活动的设计方案,它包括了教学目标、教学内容、教学方法和教学评价等要素。教案的编写需要注意课堂教学的时间安排,合理安排每个环节的时间分配。通过仔细研读这
为了确保事情或工作有序有效开展,通常需要提前准备好一份方案,方案属于计划类文书的一种。优秀的方案都具备一些什么特点呢?又该怎么写呢?下面是小编帮大家整理的方案范
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。范文怎么写才能发挥它最大的作用呢?下面是小编帮大家整
总结是对过去一定时期的工作、学习或思想情况进行回顾、分析,并做出客观评价的书面材料,它有助于我们寻找工作和事物发展的规律,从而掌握并运用这些规律,是时候写一份总
报告通常包含背景介绍、问题陈述、方法和数据、分析和结论等部分。最后,我们要记住,写作是个不断学习和提高的过程,只有不断积累经验和反思,才能写出更好的报告。以下是
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。范文书写有哪些要求呢?我们怎样才能写好一篇范文呢?下
在每个阶段结束之际,总结是我们了解自己在这段时间里所做所想的方式。善于应用适当的学习方法和工作技巧是写一篇完美总结的关键技能之一。总结范文的风格和内容因人而异,
总结不仅是一种自省,更是一种对自我的检视和审视。在总结中,可以陈述一些自己的感悟和体验,增加读者的共鸣。以下是一些关于工作总结的例子,适用于各行各业的职场人士。
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。相信许多人会觉得范文很难写?接下来小编就给大家介绍一
总结是一种对前期工作和学习的总结和归纳,对未来的工作和学习具有重要的指导作用。如何写一篇优秀的作文是每个学生都需要掌握的技能,下面我来给大家分享一些写作技巧。下
方案的实施需要明确的目标和计划,并监督评估进展。在制定方案时,我们应该遵循科学的原则和方法,以提高方案的质量和效果。在实际工作中,有许多方案可以用来解决问题和实
总结是提升自我认知能力的有效方式之一。一个好的总结应该简明扼要、重点突出、内容准确。以下是小编为大家收集的成功案例,希望能给大家提供一些借鉴和启示。小学体育教学
作为一位不辞辛劳的人民教师,常常要根据教学需要编写教案,教案有利于教学水平的提高,有助于教研活动的开展。那么我们该如何写一篇较为完美的教案呢?下面我帮大家找寻并
总结可以让我们更加深入地思考和理解,进而为未来的工作和学习提供更好的方向。利用图表和数据等形式做数据统计和分析,增加可视化效果。这些范文是多年总结经验的总结,希
在人民愈发重视法律的社会中,越来越多事情需要用到合同,它也是实现专业化合作的纽带。相信很多朋友都对拟合同感到非常苦恼吧。以下是我为大家搜集的合同范文,仅供参考,
心得体会是在我们学习和工作生活的过程中,对所得到的经验和感悟进行总结和归纳的一种方式。通过写心得体会,我们可以更好地理清思路,加深对某个问题的认识和理解。心得体
演讲稿能够提前考虑听众的需求和反应,有针对性地选择和安排演讲内容。如何写一篇较为完美的演讲稿通过%20演讲稿%20+%20那么,如何写一篇引人入胜的演讲稿呢?%
在总结的过程中,我们需要保持客观、公正,真实地反映事实并且提出合理的建议。其次,需要考虑最后,祝大家写出一篇精彩的总结,展示出自己的成长和进步。股权转让股份协议
生活中的琐事扰乱了我们的思绪,写一份总结可以帮助我们理清头绪。如何平衡工作和生活,提高工作效率并保持身心健康?以下是小编为大家整理的古诗词选读,希望能够帮助大家
不同的情感体验可能导致我们对同一事物产生不同的感觉和反应。找到总结的重点和关键,对于写一篇完美的总结至关重要。我们可以通过阅读以下总结范文,掌握写作技巧和提高写
总结能帮助我们更好地理解和运用知识,提高我们的实际应用能力。在总结的写作中,要根据具体情境选择合适的语气和态度,以达到更好的传达效果。以下是一些关于总结写作的范
心得体会是我们对自己的成长和发展的思考和总结。心得体会要注意语气和情感的思考,给读者带来共鸣和启发。在这些心得体会范文中,我们可以从中学习到不同的写作风格和思路
完成一项任务后,做好总结是对自己和他人的负责,更是为了日后的进步和成长。如何有效沟通,提高表达能力和影响力?通过阅读他人的总结范文,可以发现共同的经验和问题,借
人生天地之间,若白驹过隙,忽然而已,我们又将迎来新的喜悦、新的收获,一起对今后的学习做个计划吧。计划怎么写才能发挥它最大的作用呢?以下是小编为大家收集的计划范文
总结可以让我们更加深入地思考和理解,进而为未来的工作和学习提供更好的方向。可以通过对过去经验和现状进行比较和分析,来提炼总结的核心观点。以下是小编为大家收集的艺
在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。写范文的时候需要注意什么呢?有哪些格式需要注意呢?接
通过阅读,可以更好地理解和欣赏文学作品。在撰写总结时,我们要做到言简意赅,避免使用过多的俗套词汇和空洞的陈述。以下是社会学家对于社会问题的分析和解决方案,值得我
作为一位杰出的老师,编写教案是必不可少的,教案有助于顺利而有效地开展教学活动。教案书写有哪些要求呢?我们怎样才能写好一篇教案呢?下面是小编整理的优秀教案范文,欢
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。写范文的时候需要注意什么呢?有哪些格式需要注意呢?下
a.付费复制
付费获得该文章复制权限
特价:2.99元 10元
微信扫码支付
b.包月复制
付费后30天内不限量复制
特价:6.66元 10元
微信扫码支付
联系客服