三年级数学说课稿人教版 三年级数学说课稿学情分析18篇(实用)

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，希望对大家有所帮助，下面我们就来了解一下吧。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇一

《集合》是三年级上册数学广角的内容，它主要是介绍和渗透一些数学思想方法，涉及的重叠问题是日常生活中应用比较广泛的数学知识。在本节课前，学生虽然已经学习过分类的思想方法，但《集合》这部分内容比较抽象，在这里只是让学生通过生活中容易理解的例子去初步体会集合思想，为以后继续学习打下必要的基础，学生只要能够用自己的方法解决问题就可以了。

知识目标：引导学生从生活经验中感受到交集的含义，能借助直观图，体验利用维恩图解决简单的实际问题。

能力目标：通过小组合作设计集合图的活动，启发学生对交集部分的理解，培养学生的操作能力、思考能力、创新能力、评价说理能力。

情感目标：通过生活情景的课堂再现，让学生在探究、应用知识中体验数学的价值。

教学重点：初步学会利用交集的含义解决简单的实际问题。

教学难点：用图示的方式感受到交集部分所表示的意义。

本节课刘老师主要采用游戏法、直观演示法、讲解法、师生合作探究法，以学生为主体，老师引导学生一步步的深入探究，进而将问题解决，达到教学目标。

学生在老师的引导下，通过游戏、自主探究、独立思考、小组合作、动手操作等方法来理解集合各部分表示的意义，根据集合图直观形象的解决问题。

六 说教学过程

1刘老师为了提高学生学习的兴趣和的积极性，为学生营造了轻松愉悦的学习氛围，利用猜拳和抢凳子的游戏，来激发学生的学习兴趣，加强学生对集合图的理解。

2在游戏中引起矛盾冲突，提出问题，使学生的思维世界中出现碰撞，便产生了求知的火花，从而主动探索解决问题的办法，领悟问题存在的根源——重复。

3借助呼啦圈套小朋友的方法，演示出集合圈的知识，能够帮助学生形象直观地理解集合图各部分所表示的意义。

4 借助学生比较感兴趣的的语数竞赛活动的情况，让学生充分探究集合的知识及解决问题的计算方法。

5小组合作，利用已有的知识经验来设计集合图，进一步加深对集合知识的理解和认识。

6 在解决问题的同时，注重学生思维的拓展，让学生考虑到集合与集合之间关系的多样性使所学知识得到了延伸。

总之，数学课不仅是让学生学数学，更重要的是让学生欣赏数学、体验数学的价值，从欣赏和体验中去感悟数学道理、培养数学素养。本节课学生在学习活动的参与中，真正的做到了自主探索、不断创新，体验到了数学学习的快乐与成功。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇二

(一)说教学内容

小学数学三年级上册第九单元数学广角第一课时简单的排列。这节内容是在学生已经接触了一点排列与组合知识的基础上继续让学生通过观察、猜测、试验等活动，找出事物的排列数和组合数。,《标准》中指出：“重要的数学概念与数学思想宜逐步深入”。所以这节内容重在向学生渗透数学思想，并逐步培养学生有顺序地、全面的思考问题的意识。

根据以上分析及课标要求，我拟定这节的教学目标为：

⒈学生经历两种不同的事物进行简单的搭配的过程，学习有顺序有条理，由具体到抽象地进行思考，探索出共有多少种搭配方法的数学关系。

⒉联系学生的生活实际，训练学生的有序思考能力和全面思考问题的习惯。

⒊培养学生学习数学的兴趣和用数学方法解决问题的意识。

(二)说教学重难点

重点：结合具体情境，能够进行有序的思考，掌握搭配的方法。

难点：使学生有序的思考问题，做到既不重复也不遗漏。

本节课为了能使学生轻松、愉快地理解排列与组合的思想方法，根据学生的认知特点和规律，我创设了小学生最喜欢的动画人物孙悟空带大家去花果山游玩这一情境引入，激起了学生浓厚的学习兴趣。从教材看，只提供了衣服搭配一个情境，为了让学生有更多从事数学活动的机会。我对教材内容进行了补充。安排在教学中，我设计了四个活动，即衣服搭配。饮食搭配。路线搭配以及照相搭配，每一个活动将孙悟空融入其中。每一个活动都让学生感受到这四个活动的层次各有不同。但每一个活动都力求体现学生的主体地位，放手让学生参与每一个学习活动。

本节课，设计了搭配衣服、搭配路线、搭配食物这样三个与学生生活联系紧密的活动，在动手操作、观察发现、寻找规律中，给学生提供了充足的实践机会，既展示了知识的形成过程，又让学生在活动中亲历了一个感悟、体验、提升的数学化过程。

在搭配衣服这个环节，我先让学生借助实物图片独立操作，直观感受搭配的方法。然后通过汇报及学生间的交流，引导学生认识到不按一定顺序搭配会出现遗漏和重复的现象。接着再让学生在小组内交流各自的搭配方法，在汇报时引导学生评价，让他们认识到怎样搭配才能做到不重复也不遗漏。这样就给学生提供了充分的活动时间和空间，让学生在自主探索和合作交流的过程中真正理解和掌握基本数学方法和技能。让学生总结规律，使学生的思维得到进一步提升，也为今后学习相关的组合知识打下基础。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇三

教材在考虑到三年级学生的年龄特点和学生的认知规律，采用小步子的编排方法，所以本单元学习的简单的同分母分数分数加减法，分数的分母都不超过10，加减所得的结果都不要求约分，在学习了分数的意义后仍然关注的是理解分数的意义，以生活的事例和帮助理解的直观图来学习分数加法。学好这部分内容，既可以加深对分数意义的认识，同时也为进一步学习分数加、减法作些准备。教材中的例1，通过直观的图形，使学生理解为2个1/8加上3个1/8，结果是5个1/8，也就是是5/8。由于没有讲同分母分数加法的计算方法，可能有学生没有观察或者观察不出或者不能想象出直观的图形，出现2/8+3/8=5/16的现象，这就是这节课的重点和难点。从分数的意义上让学生理解同分母分数加法的算理和方法这是关键。教材这样的编排有助于加深理解分数的含义，并使学生初步感到只有分母相同的分数（分数的意义）才能直接相加。

通过学生对生活事例的再现和直观图观察，理解相同分母分数相加方法。会计算简单的同分母分数加法。

在学生体会到简单的同分母分数加法的算理和方法的学习过程中，培养学生的观察、分析和动手操作能力。

通过合作交流，使学生的探索意识、创新意识得到发展，培养学生良好的学习习惯。

重点：让学生能够正确理解并计算简单的同分母分数加法。

难点：受整数加、减计算法则的影响和对分数的含义不理解，分数加法学习有困难。

为了突破重点与难点，有效地达成目标，遵循数学课程标准中提出的“要引导学生联系身边具体、有趣的事物。通过观察、操作、解决问题等丰富的活动，……初步建立数感”的教学指导思想。

（1） 用直观演示……

（2） 通过小组合作学习……

（1） 根据学生的年龄特点，用学具操作建立分数加法的起始知识。

（2） 用练习法……

结合学生的知识基础与本班学生的实际情况，主要通过以下几个环节来引导学生展开探索学习。

一是结合学生喜欢的四个学生过生日情境图，让学生观察情境图，在观察交流中引出把一个蛋糕平均分成10份，每份是整个蛋糕的几分之几？小红吃了其中的一份，小红吃了整个蛋糕的几分之几？小明吃了其中的二份，小明吃了整个蛋糕的几分之几？里面有几个十分之一？等问题，在生活情境中练习，加强学生对分数的认识和理解，初步认识到同分母分数的加法关系。

二是在这一情景中，引出小明与小红一共吃了整个蛋糕的几分之几？引发学生对新知的思考。由于生活常识，学生很容易想到小明和小红一共吃了这个蛋糕的十分之三。此时，教师追问：你是怎么想的？促使学生对这一生活常识进行理性的思考。也为同分母分数加法的探索交流拉开序幕。此时，教师组织学生拿出实物图，在观察与拼摆中让学生体会到：一个十分之一加二个十分之一是三个十分之一，是十分之三。有了这一初步认识，出示书上的例1，让学生通过直观图的观察，理解二个八分之一加三个八分之一是五个八分之一，是八分之五。在两个实例的观察理解中，让学生初步感悟到：同分母分数加法的计算，只要分子相加，有效避免学生中可能出现2/8＋3/8=5/16这种现象。有了这一感性的认识，让学生完成图文并茂的练习，让学生进行同分母分数的加法计算，在比较交流中，让学生初步体会到分母相同的分数相加，只要分子直接相加就行了。

三是运用知识解决问题。一是图文结合的同分母分数加法练习，让学生能够运用自己在学习中体会到的正确方法计算同分母分数加法。二是只有算式的同分母分数加法练习，让学生能正确的表述几个几分之一加几个几分之一一共是几个几分之一，就是几分之几，使学生能把方法抽象运用于习题的计算，三是结合生活场景的同分母分数加法应用题练习，让学生在知识运用中体会的数学知识的用处，激发学生的学习兴趣。

四是，结合课始的生日情境图，让学生在情境中运用知识回答问题：如谁和谁一共吃了这个蛋糕的几分之几？接着让学生思考，三个小朋友一共吃了这个蛋糕的几分之几？怎样想？四个小朋友一共吃了这个蛋糕的几分之几？怎么想？使学生能够灵活的进行知识的扩展，更好的理解分数的意义，进一步体会同分母分数加法的计算原理与方法。最后让学生思考，四个小朋友把整个蛋糕吃完了吗？还有这个蛋糕的几分之几呢？在知识的冲突中结束本课的学习，为同分母分数减法的学习作好埋伏。激发学生进行课后思考与探索的兴趣与欲望。

在这一节课学习活动中，主要注意以下三条：

一是联系生活情境和直观的图形，让学生体会到同分母分数加法的的计算原理与方法。

二是在知识运用中，让学生主动的把知识进行延伸扩展，让不同的学生得到不同的发展。

三是紧扣生活情境，让学生在与生活紧密相联的环境中运用知识，使学生感受到数学知识就在我们的身边。激发学生的学习兴趣。

以上教学设计在中，肯定会出现许多不足之处，敬请各位老师们批评指正，欢迎多提宝贵意见。非常感谢！

三年级数学说课稿人教版 三年级数学说课稿学情分析篇四

《长方形和正方形面积的计算》一课是人教版三年级数学下册第77、78页的内容。本课是在学生已经初步认识面积和面积单位的基础上进行教学的。教材是根据学生已经掌握了长方形的有关知识，通过学生的实际操作，量一量，摆一摆，初步得出长方形的面积计算与长和宽之间的关系，然后再进一步推广到任意长方形的面积都可用长×宽=面积的方法计算。

根据新课标的要求及教材的编排特点以及考虑到我班学生的学习能力等情况，我确定了本节课的教学目标如下：

（1）使学生初步理解长方形和正方形的面积计算方法。

（2）会运用长方形和正方形的面积计算公式正确地计算长方形和正方形的面积。

（3）培养学生的观察、操作、归纳、推理、解决问题和动手操作的能力。

2、过程与方法：引导学生通过观察、实验、推理等活动，渗透实验——发现——验证的学习方法，在学习过程中，使学生充分感受事物之间存在着联系。

3、情感态度与价值观：渗透“实验—发现—验证”的学习方法，培养学生的自主学习能力、合作意识和科学探究精神。

根据教材的要求，确定本节课教学重点是使学生经历长方形面积计算公式的推导过程，并会应用公式计算长方形的面积。教学难点是让学生学会自行探索，概括出长方形的面积计算方法，并理解长方形所含的平方厘米数正好等于长方形所含的厘米数与宽所含的厘米数的乘积。

本节课教学成功与否，直接关系到后面正方形面积的教学，以至关系到整个小学阶段平面图形面积的教学。如：平行四边形、三角形、梯形、圆面积等。这些平面图形面积的求法都是在计算长方形面积的基础上进行推导的。所以，这节课又是小学阶段平面图形知识的重点。

三年级学生的思维形式正处在由形象思维过渡到抽象思维的阶段。因此，本节课的教学尽量运用直观教具、学具和操作手段，为学生提供丰富的感性材料，调动学生多种感官（手、眼、脑）参与知识的形成过程。教法的选择以直观教学法为主、操作法和演示法为辅。

教具和学具：边长1厘米的方格纸、两个长方形纸片、表格等。

在学法上可归纳为：

1、创设问题情境，引起学生的好奇心和求知欲，使学生好学。

2、创设操作情景，调动学生学习的积极性，使学生会学，在学习过程中有意培养学生主动探索的能力。

3、运用直观教学等多种手段，以便活跃课堂气氛，使学生乐学。

（一）课前谈话，复习导入

通过复习面积和面积单位，用面积单位密铺的方法可以知道物体表面或封闭图形的面积的谈话来导入课题。使学生明白要学什么，知道用已有的知识来解决新的问题。

（二）动手操作、自主探究

为了让学生有目的、有重点地学习新知识，根据学生的年龄特点和知识特点，让学生在回忆常用面积单位的基础上，教学长方形面积计算公式的推导时，采取以下的方式进行：

1、让学生动手操作，先是让学生利用学具摆一摆，从而引出探究长方形面积的计算方法是什么，再通过学生动手操作并完成表格。并将长方形的长，宽，以及面积的数据统计出来。

2、在探究活动过程中，让学生交流发现计算长方形面积与长方形长和宽之间的关系，并引导学生初步发现了长方形的长所含厘米数×宽所含厘米数=长方形所含的平方厘米数。初步得出“长方形的面积=长×宽”

3、运用结论，抽象归纳。问：是不是所有的长方形面积都可用它的长乘以宽来计算呢？让我们来验证一下好不好？以此提问引起学生强烈的求知欲望。

要求学生通过现有的材料，小组操作、探讨、验证。这一部分我放手让学生自己动手操作，让他们独立去探索、去发现，验证、推导出长方形的面积计算方法。这样既加强了学生基础知识的教学，同时又培养了学生创造性思维能力，充分体现出学生的主体作用。通过进一步的验证，让学生归纳出长方形的面积计算方法，即长方形的面积=长×宽这一结论。

（三）课堂练习，巩固新知。

教学正方形的面积计算公式时，我没有把它作为例题来教学，而是通过出示下面几个图形，让学生计算每个图形的面积。长3厘米、宽2厘米；长5厘米、宽3厘米；长4米、宽3米；长3米、宽3米（实际上是边长3米的正方形）指着最后的图形：这个长方形特别在哪里？正方形的面积，可以怎样计算呢？

学生从长方形的面积计算迁移到正方形的面积计算，即长和宽相等时，就变成了边长×边长，从而总结出正方形的面积计算公式=边长×边长。发展了学生的推理能力和空间观念。

（四）巩固应用。

为了进一步巩固学生掌握知识情况，让学生完成如下练习：

1、p79练习十九第1题：计算黑板的面积？

2、p79练习十九第3题：计算篮球场的面积？半场的面积？

（五）、提高延伸

李小林要从下面的长方形纸上剪下一个最大的正方形。剩下部分是什么图形？它的面积是多少平方厘米？

通过这一基础练习，使学生能够熟练运用长方形面积公式来解决一般问题。

（六）、总结评价，促进发展

师：这节课你有什么收获？把你的收获和小组的同学交流一下。

（设计意图：关注学生的知识与技能的同时也注重学生的情感、态度、价值观，把自己的收获与同学交流，既是对一节课自己掌握情况的回顾，也是对自己行为的评价。）

最后，教师以提问，学生自行小结的方式结束：这节课你们学了哪些知识？这一部分在学生小结的基础上我在进行补充，使这一节课的内容在学生大脑中形成一个完整的体系。

为了让学生学好《长方形和正方形面积的计算》这课知识，我尽量多让学生自己动手操作，让他们去探索、去发现、去归纳，在学生探索的过程中，教师只是启发者、引路人，让学生真正成为课堂的主导者。这样，学生才真正学到了知识。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇五

可能性

1、通过“猜测——试验——分析试验数据”，经历事件发生可能性大小的探索过程，初步感受某些事件发生的可能性是不确定的，体会事件发生的可能性是有大有小的。

2、培养学生的猜测、实验和观察能力。

3、在活动交流中发展合作学习的意识和能力。

体验事件发生可能性的大小。

通过活动能知道事件发生的可能性是有大有小的。

课件、棋子（两种颜色）、小球（三种颜色）、大盒子、反馈练习、统计表格。

课前谈话：实物投影展示转盘，让学生亲自体验一下转盘得奖活动，初步感知事件发生的可能性大小。

看来像转盘的奖、抽奖等等许多事情发生的结果是不确定的，有可能发生，也可能不发生，这节课我们进一步研究可能性问题。（板书：可能性）

1、创设情景，激发探究欲望

师：通过刚才的转盘得奖活动，你有什么想法？

生：获得一等奖的可能性小，获得纪念奖的可能性大。

师：为什么呢？

生：因为一等奖占的面积大，纪念奖占的面积小。

师：是这样吗？下面通过大家的试验，验证一下是不是有这种规律存在。

2、设计摸棋子抽奖活动

师：我们共同设计摸棋子抽奖活动。袋子里只放入黑白两种颜色的棋子共10枚，其中黑棋子表示一等奖，白棋子表示纪念奖，根据你的生活经验，你打算怎样设计这次摸奖活动？

师：自己想一想，同桌两个人相互说一说。

3、汇报自己组的想法

生：黑棋子放1个，白棋子放9个，让中一等奖的人少一些。

生：黑棋子放3个，白棋子放7个，让中一等奖的人多一些。

师：按两人一组的想法，把棋子又轻又快的放入袋中。

4、小组合作实验

明确要求：

1、每人各摸10次，一人摸另一人记录，不能看，摸完一次后放回去，要一要再摸。

2、把每次摸得的结果用画“正”字的方法进行统计并把结果填入表中，同时思考你发现了什么？

5、展示、汇报、交流

（1） 把记录单按照黑棋子的多少依次贴在黑板上。

（2） 师:黑棋子少，摸到黑棋子的可能性就小，白棋子多，摸到白棋子的可能性就大。

（3） 解决反例问题

师：为什么黑棋子少，摸出黑棋子的次数却多呢？说一说这是这么回事？

生再次实验（黑棋子1个白棋子9个或黑棋子2个白棋子8个）

师：通过我们的再次实验，看来黑棋子少，摸到的可能性就小。白棋子多，摸到的可能性就大。（板书：小 大）

6、 师：可能性大小于什么有关呢？

生：可能性大小与数量有关。、

师：与在总数量中所占数量的多少有关。在总数中占的数量越多，摸到的可能性就越大，占的数量越小，莫大的可能性就越小。（板书：数量 多 少）

7、师：横着观察一下，你有什么新的发现？

生：随着黑棋子数量的逐渐增加，摸出黑棋子的可能性逐渐增大了。

8、师：放5个黑棋子和5个白棋子会有什么样的结果呢？（观察摸到的结果）

生：有的摸出的黑棋子的多，也有的摸出的白棋子的多。

师：如果继续摸下去会怎样呢？猜一猜。

生：摸到的黑白棋子的可能性是差不多的。

师：正如你们的猜想，在很久以前科学家们就做了此项实验（介绍贝努力实验）

9、小结

通过刚才我们摸棋子的实验发现，袋中放几种颜色的棋子，就可能摸出几种颜色的棋子，但可能性的大小是有变化的。

1、（出示一个盒子，上面标有共14个球，白球8个，黄球4个红球2个）

师：如果老师只摸出1个球，可能是什么颜色的球，为什么？

生：因为盒子中只装有3种颜色的球，所以可能是白球，也可能是黄球或者是红球。

师：摸出什么颜色球的可能性大？什么颜色球的可能性小？

2、数学书第85页1题：连一连

3、通过游戏，再次体验可能性大小

8个分别标有1、2、3、4、5、6、7、8的球

要求：1、甲乙二人，轮流从口袋中摸球，每次摸出一球。

2、摸出球的号码大于4，甲得到1分。

摸出球的号码小于3，乙得到1分。

3、甲乙各摸10次后，得分高的获胜。

问：如果你来参加这个游戏，你将怎样选择？

（1）当甲 （2）当乙 （3）甲或乙都可以

4、师小结：这节课过得愉快吗？

三年级数学说课稿人教版 三年级数学说课稿学情分析篇六

小学低年级学生，在独生子女日益增多的情况下，由于在家里受到娇惯，独立做事少等方面的原因，大多时间观念淡薄，不知道珍惜时间，学习、生活懒散、松懈。然而，这些学生面对的社会，将是越来越讲究效率，快节奏运行的，为进一步巩固学生的道德认识，培养良好的道德行为，保持课内与课外教育的一致性，特意结合第五单元时、分、秒的内容设计珍惜时间这一节课，促使学生巩固知识，同时把道德行为进一步深化。

根据三年级学生好奇、好玩、好动的天性，在学生活动的过程中让学生参与观察、动手操作、比较讨论等一系列的活动，创设和谐的学习氛围，使学生的思维可以得到尽情的跳跃，个性得到尽情的张扬，逐渐感受到班队活动的趣味性、生活性和挑战性，达到活动的目的，注意从学生的生活经验出发，让学生在生动具体的情境中学习知识，明白道理。

本次节课设计了五个环节：

（一）谜语导入，激发兴趣

（二）亲身体会，自主发现

（三）依托生活，自主探究

（四）实践应用，寓练于乐

（五）文化熏陶，情感升华

注意从学生的出发，因此课堂各个环节的设计应从学生的“生活经验”出发，将生活中有关的问题进行类比、分析、归纳，再加以总结，从而逐渐建立起较为规范化、系统化的行为知识，让学生经历一个从具体到逐步抽象的活动过程。同时，课堂教学流畅、生动，能充分调动学生各种感官，符合学生的年龄、心理特征的氛围，渗透守时、惜时教育。抓住他们的好奇心，通过动手、合作、体验学习等学生比较感觉兴趣的活动，集中他们的注意力和唤起他们的求知欲。达到活动的教育目标。，让学生自觉养成遵守和珍惜时间、合理安排时间的良好习惯。

1、活动开始运用现代教学媒体，创设现实生活场景，从学生熟悉的生活背景入手，让学生体会知识来源于生活，进而乐此不疲地进行学习。

2、通过故事《一分钟》提出问题，鲜明地揭示教育主题，指导学生讨论完成，引起共鸣，深化道德认识。使学生懂得对于他们来说，一分钟也很珍贵。从小树立时间观念，抓紧时间做好每一件事情，成为时间的主人，养成惜时的好习惯。

3、拓宽知识、深化明理，为了深化主题教育，巩固教学要点，在学生有了一定认识、初步明理的基础上，记格言，用格言做书签，

4、让学生在积极、多元的评价中建立信心、感受成功。为了全面了解学生的学习历程，激励学生的学习和改进我们的教学，活动中不仅关注学生学习的结果，更关注他们在学习过程中所表现出来的情感与态度，用积极、及时的评价来帮助学生认识自我，建立信心。对于二年级的学生来说，老师亲切的鼓励、由衷的赞叹能激励他们克服困难、继续探索，甚至一个微笑、一个眼神都能给予他们肯定的暗示、无穷的力量。使学生始终以积极的态度、饱满的热情参与着教学活动。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇七

公顷是个较大的面积单位，一般用于计量大面积的土地。在三年级（下册）教学了平方厘米、平方分米、平方米等面积单位，这些单位比较适用于计量物体表面、平面图形以及小块土地的面积。如果用于计量面积很大的土地，则很不方便，因此需要公顷。让学生认识1平方千米，体会1平方千米的实际大小，发现平方米、公顷和平方千米之间的进率，会进行简单的单位换算。

本课的教学任务是，使学生初步形成１公顷的观念，联系实际体会它们大致是多大，在头脑里留下比较清楚的印象；结合土地面积计算，应用平方米与公顷、平方米间的进率，感受用公顷能方便地表达土地的大小，从而体会土地的面积；整理先后教学的全部面积单位，组织新的认知结构，合理地应用面积单位。测量和计算大面积的土地，通常用平方千米作单位。以边长1000米的正方形土地为基础，告诉学生其面积就是1平方千米。

1、知识目标：了解1公顷和1平方千米的实际大小。掌握平方千米和公顷间的进率，会用进率进行换算。

2、情感目标：使学生能比较形象地感受1公顷和1平方千米的实际大小。

3、使学生在学习活动中进一步体会数学与生活的联系，培养相互合作学习的能力。

教学重点：掌握平方米、公顷和平方千米之间的简单换算。

教学难点：建立1公顷、1平方千米的概念。

教具准备：挂图一张，学生课前收集的资料（体现我国地大物博的资料。

为了有效的突出重点、突破难点，按照学生的认知规律，我在教学中采用了老师启发引导，师生交谈，图像信号法，课堂讨论、交流等手段通过组织学生感悟、探究让学生建立1平方千米的表象知道平方米与公顷以及平方千米之间的进率并利用进率会进行简单的换算。让学生在教师的引导下使学生自主参与知识的发生、发展、形成的过程，探究新知、感受新知、学习新知、巩固新知。

课堂教学是学生数学知识的获得、技能技巧的形成、智力、能力的发展以及思想品德形成的有效途径，为达到预期的教学目标，结合本节课的教学实际，以“联系生活，提炼新知——学习新知，建立表象——应用巩固，深化拓展——全课总结、深化认识”的四大教学流程展开教学，这样能给学生更多的主动参与、积极思考的空间，使学生主动积极地发展，在获得基础知识和基本技能的同时，发展思维，培养能力。具体的教学程序是这样的：

1、联系生活，感受新知

2、学习新知，建立表象

猜想1平方千米有多大：认识1平方千米：结合实际，进行估算；我们学校的面积大约是5公顷，想一想，多少个这样（）的面积才是1平方千米呢 学习土地面积单位之间的进率。

1平方千米的土地有多少公顷？你能推算出来吗？

学生尝试，小组交流，说出推算过程。

3交流，完成板书：

1平方千米=100公顷=1000000平方米

1、同桌交流自己对土地面积单位之间的进率的认识与掌握情况

4应用巩固，深化拓展

（1、运动场面积、居民小区占地面积、我们市的面积、江苏省面积以及我国的领土面积用哪个土地面积单位较合适呢？

出示练习十三第7题；出示从同一幅地图上描下来的5个省的地图，估计出其他四个省的面积大约是多少万平方千米？

5、全课总结，深化认识。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇八

千米的认识是九年任务教导六年制小学数学第五册第84、85页的内容。《千米的认识》是小学数学量与计量知识的一个主要内容。它是在学生学习了米、分米、厘米、毫米等长度单位，并且初步懂得了这些长度单位在日常生活中的运用的基础长进行教学的。

《提纲》明白指出："要器重从学生的生活经验和已有知识中学习数学和理解数学".因为学生在实际生活中，很少有机会接触千米这个较大的长度单位，学生会觉得抽象，建立1千米的观念比较困难。因此，我认为本节课的重点是使学生建立千米的观念，在建立千米观念的基础上去正确估计物体的长度又是这节课的难点。为了突出重点，突破难点，教学的要害是尽量联系学生的生活实际，增添学生对千米的理性认识。

根据教材特点和学生的年纪特点，我制订了以下三条教学目标：

1、知识目标：使学生初步认识长度单位千米，建立1千米的长度观念，熟记1千米=1000米，并能进行简单的化聚。

2、能力目标：在认识千米的进程中，培养学生的视察、比较、抽象、概括能力，能用千米准确估量物体的长度。

3、感情目标：通过小组合作、交换，使学生在摸索和协作过程中取得胜利的休会。

本节课的课时部署为1课时

教学的主体是学生，为此我分析了学生的状态。因为学生已经学习了米、分米、厘米、毫米等长度单位，且三年级学生都有最初步的感知长度的生活教训，从基础知识和根本技巧方面来看，预备状况是良好的。但三年级学生习惯于形象思维，要建立1千米这么大的一个长度观念，还存在必定的难度，而对长度单位千米认识不深刻，必将导致重量单位使用分歧适，以及估计估计物体长度不准确等过错。介于学生思维发展的阶段特点，我采用了观察法、试验法及尝试练习法，并把所学知识与生活中的实际经验建立联系。这样的学习方法，让学生在亲自体验中中学习知识，使他们感触到数学就在我们的生活中。

教师要成为"善教者"就必须对学生进行学法指点，因为"方法是翻开知识宝库的钥匙".同教法一样，学法指导也必须根据学生特点与学习内容进行优化组合。在分组实验时，指导他们学会观察、比较、分析、抽象、概括的思维方法；学汇合作与讨论；在认识千米时，指导他们学会自学与总结。

（一）复习导入

1、一米大略有多长？

2、出示米尺，让学生说说米尺的作用。

3、当我们测量数学课本的宽，铅笔盒的厚度时，是不是还用米来丈量？当米尺测量这些物体显得太长时，我们是引入了分米、厘米、毫米等比米小的长度单位来测量，这些单位间的关系是怎么的？

4、如果我们要测量一下梧埏镇核心小学到温州动物园的路程到底有多长？你有没有措施？根据学生的回答收拾，当测量行程的长度时，我们通常用比米大的长度单位千米（板书课题）。当初我们就来认识千米。

（这种导入方法建立在学生已有认知的基础上，通过设疑提问，巧设悬念，可以激发学生自动探究新知识的愿望，并了解了千米这种单位的作用。）

（二）新课教学

1、认识千米

（1）意识10米。

在学校的操场上用卷尺量出10米，在两头插两根标枪，让学生走一走，看一看。然后每10米挪动一下标枪，同时让学生观察，走步，了解几十米，举例说说什么物体的长度大概是10米？

（2）认识100米。通过测量得到10个10米是100米，观察，然后走一走，想想100米的长度。举例说说从哪里到哪里的长度大约是100米？

（3）认识1000米。

上此课的前几天体育老师已经应用体育课组织学生绕操场跑道跑了4圈，每人必需跑完，跑慢不要紧。学生先说说赛跑的感想，然后告知学生跑道为250米，问实际上就是跑了多少米？

2、单位间的化聚。

（1）1000米就是1千米，1千米就是1000米（板书千米、米关联），

千米有时也叫公里。

（联系生活实际，通过亲自体验，跑完艰难的1千米，此时"千米"在学生的心中已经烙下了深深的印痕，那将是长远的，冲破了建破1千米的观念的难点）

（2）教学例1

以前我们学过米、分米、厘米、毫米间的互化，现在你能不能根据1千米=1000米，自己想办法解决这个问题？请大家试一试，有艰苦的同学可以与同桌磋商一下。

计算2千米=（）米

学生计算成果，然后说说是怎样想的。

再练习：

2千米500米=（）米

6千米30米=（）米

练习后说说主意。

（3）教学例2

尝试训练

4000米=（）千米

并说说练习过程的根据？

再训练

10000米=（）千米

尝试练习：

4350米=（）千米（）米

想：4000米是4千米，4350千米是4千米530米

（4）试一试：

6千米720米=（）米

5830米=（）米

3、归纳整理长度单位

经由这个单元的学习，咱们已经把长度单位全体学完了。你可以先用手比划一下各长度单位（千米除外）的长度。谁能按从小到大的次序给它们排排位？

答：我们学过的长度单位共有五个，依照从小到大的顺序排列顺次是：毫米、厘米、分米、米、千米。

相邻长度单位间的进率都雷同吗？不同在哪里？

答：基础的进率关系式有四个，分离是：

1千米=1000米，1米=10分米1分米=10厘米，1厘米=10毫米。

在此基础上可以推算出以下的进率关系式：

1千米=10000分米=100000厘米=1000000毫米

1米=100厘米=1000毫米 1分米=100毫米

（引导学生对学过的长度单位及其进率进行整顿和演绎，使学生认识一个完整的长度单位的知识系统。）

小结：今天你有哪些新的播种？还有哪些问题？你是用哪些办法学会这些知识的？

三、坚固应用

学了这些知识你感到能解决哪些问题？

那么多实际问题，课后你们可以抉择自己最爱好的问题想方法加以解决。这里老师也收集了几个问题，你们能用今天学到的本事加以解决吗？

1、填上合适的长度单位

一根拔河绳长12（）

小冬肩宽30（）

一辆汽车每小时行60（）

一本数学书厚8（）

北京到温州之间相距2510（）

杭州到温州之间相距367（）

学校到温州动物园相距12（）

（这道题跟生涯接洽最严密，能够增强学生对长度单位千米与米、分米、厘米、毫米的对照，培育学生正确应用长度单位的才能。）

2、在○里填上"〉"、"〈"、或"="号。

（1）5千米○678米；（2）28毫米○6厘米；

（3）100分米○10米（4）6分米○485毫米

3、有a、b、c、d四种物体，它们的长度分辨如下。那么最长的一种物体是（）。

a、680毫米b、4分米c、2米d、216厘米

（支配这道题的目标是在学生掌握长度单位之间的基础上，会进行单位换算，并比较大小。又通过取舍合适的数目，建立实际长度的观念。）

4、你能说出一些详细例子吗？

（1）约6分米长的物体（举出5个例子）。

（2）用千米作单位最适合（举出5个例子）。

（在纯熟认识长度单位的基本上，会应用所学知识解利用题，并能联系生活实际举例阐明，进步运用长度单位的能力。）

板书设计：

千米（公里）的认识

毫米、厘米、分米、米、千米

1千米=1000米

1米=10分米1分米=10厘米，1厘米=10毫米。

例1:

（1）2千米=（）米

（2）2千米500米=（）米

例2:

（1）4000米=（）千米

（2）4350米=（）千米（）米

这样的板书设计一是有利于领导学生观察和抽象概括；二是板书设计和教学思路协调同一，能扼要凸起地浮现本课知识点，看上去高深莫测。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇九

这节课是人教版义务教育课程标准实验教科书三年级下册p88-89的内容，它是在学生认识了万以内数，初步认识了分数，并且学会了常用计量单位的基础上进行学习的。学习这部分内容既可以在实际生活中应用，又能为今后系统地学习小数打下初步的基础。教材在编写时，结合儿童的年龄特征，创设了较为丰富的贴近儿童生活实际的情境，结合元、角、分和常用的长度单位，使学生易于接受。

这是学生在课本中第一次接触小数，虽说是第一次，但是由于小数在生活中的广泛应用，大多数孩子对于小数并不陌生。因此，我结合学生已有的知识经验和年龄特点确立了以下教学目标：

1、结合具体内容初步了解小数的含义，懂得以元为单位、以米为单位的小数的实际含义，会认、读、写小数部分不超过两位的小数。

2、初步感知十分之几可以用一位小数表示，百分之几可以用两位小数表示。

3、培养主动探索的意识和合作交流的能力，体会数学与现实生活的联系。

本节课的教学重点是懂得以元为单位、以米为单位的小数的实际含义；教学难点是知道十分之几可以用一位小数表示，百分之几可以用两位小数表示。

小学生的很多生活经验，以及他们前面所学的整数及其加减法的有关知识，都能发挥积极的迁移作用。为了适应儿童的年龄特征，使学生易于接受，本节课的小数都结合元、角、分和常用的长度单位出现，以便于学生联系实际，来初步认识小数的含义。本节课，我选择了以讲解法、直观演示法为主，辅以启发法、引导发现法、讲练结合法等，充分发挥教师的引导作用，调动学生的能动性，引导他们去发现问题、分析问题、解决问题，从而达到训练思维、培养能力的目的。

教法和学法是和谐统一的、互相联系补课分割的。教学时要注意发挥学生的主体作用，充分调动各种感官参与学习，诱发其内在的潜力，独立主动地探究知识，使他们不仅学会，而且会学。把学生的求知欲由潜伏状态诱发为活动状态，培养了学生主动探索的精神。在此基础上，通过学生的比较、分析、概括出小数的含义，培养了学生的概括归纳能力。

（一）价格竞猜，引入小数

老师今天带了一些礼物要奖给今天表现好的学生，但在那之前要请大家先来猜猜这个奖品的价格是多少？（标价牌上的价格是0.7元）

同学们都有去超市买东西的经验吧，老师也在超市里收集了一些商品的价格，请看（出示主题图）。

这些价格与我们以前学过的整数有什么区别？

这些价格都是用小数表示的，这也是我们这节课要认识的新数——小数。

（二）探究新知

1、认识小数

（1）像5.98、0.85、2.60这样的数叫做小数。小圆点叫做小数点。

（2）你们会读小数吗？谁来说说这些小数应该怎么读呀？

（3）学生尝试读，读错的师生进行纠正。（提示小数的读法）

（4）那小数应该怎么写呢？让我们动手试试。

（5）你们知道这些食品的价格吗？分别是几元几角几分呢？

（6）你还在哪里见过小数？结合实际说一说。

2、认识以米为单位的一位小数

（1）常用的长度单位有哪些？（复习旧知1米=10分米，1米=100厘米）

（2）课件展示一米长的尺，在尺上找出一分米来。

（3）把一米平均分成10份，每份是1分米，想一想，1分米是1米的几分之几？1米的1/10是几分之几米？

师：1分米是1/10米，1/10米还可以写作小数0.1米。（课件显示两种对应的表示方法）

（4）不足1米，可以用分数、小数表示，那3分米要写成以米为单位，怎么写呢？9分米呢？

师小结：不足1米，小数点左边是0。

（5）观察这三个分数，它们有什么共同点？观察这三个小数，它们有什么共同点？你发现了什么？

3、认识以米为单位的两位小数

（1）同学们，面对同样的事物，我们只要换个角度，又有了新的发现。请看：（课件展示将1米的尺子平均分成100份）

现在1米平均分成了多少份？每份的长度是多少？

（2）1厘米用分数表示是多少米？用小数呢？

（3）那么3厘米用小数怎么表示？你是怎么想的？18厘米呢？

（4）想一想：0.03米、0.18米，小数点后面第一位表示什么？第二位呢？什么样的分数能写成两位小数？

（5）观察发现：百分之几可以改写成两位小数。

4、老师的身高155厘米=（）米

（1）观察前面两组小数的相同点（整数部分都是0），为什么都是0？如果超过1米，整数部分还会是0吗？

（2）老师的身高是155厘米，你能把它改写成以米为单位的小数吗？

（三）巩固练习

1、看图填写合适的分数或小数。

2、教材89页做一做。

3、改写数学日记。

这是一位同学写的一篇数学日记，你能帮他把日记里的这些数据改成用小数表示吗？（早晨。我从2米4分米的床上爬起来，用2分米的牙刷刷牙，迅速洗脸，到早餐店买了一个6角钱的鸡蛋和1元5角钱的包子后，飞奔到学校）

2米4分米=（）米2分米=（）米6角=（）元1元5角=（）元

（四）课堂小结

回顾刚才的学习过程，你有什么收获？

总之我是通过生活情景初步感知小数，再利用生活情景自主探究和合作交流，深刻理解小数的含义，最后运用巩固，不仅使学生了解小数的实用工具性，也培养了学生的数感。

三年级数学说课稿人教版 三年级数学说课稿学情分析篇十

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三年级数学说课稿人教版 三年级数学说课稿学情分析篇十一

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