2022年人教版小学数学五年级下册《长方体的体积》说课稿 .pdf
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1、学习好资料欢迎下载人教版小学数学五年级下册长方体的体积说课稿各位老师:大家下午好!今天我说课的内容是长方体的体积一课。下面我将从说教材,说教法,说学法,说教学流程和说板书设计五个方面来进行说课。一、说教材1、教学内容长方体的体积 是人教版小学数学五年级下册第四章第三节的教学内容。2、教材分析本课是在学生已经基本认识了长方体和正方体的特征,学习了表面积的计算,掌握了体积的概念和常用的体积单位的基础上进行教学的。学习体积的计算,使学生进一步体会到知识来源于实践、用于实践的道理,掌握一些研究问题的方法。并且对学生空间观念的形成有着重要的意义。同时为学习体积单位之间的进率打下基础。3、教学目标根据上述
2、教材结构和内容简析以及课程标准的具体要求,考虑到学生已有的知识结构和心理特征,我特制定以下教学目标:(1)、知识与技能:使学生掌握长方体和正方体体积公式的推导过程,理解长方体和正方体体积的计算公式;初步学会计算长方体和正方体的体积。(2)、过程与方法:培养学生实际操作能力,同时发展他们的空间观学习好资料欢迎下载念。(3)、情感态度和价值观:在活动中使学生感受数学与实际生活的密切联系,体验学数学、用数学的乐趣,从而激发学生的学习兴趣。4、教学重难点重点:结合具体情境和实践活动,探索并掌握长方体、正方体体积的计算方法、能正确计算长方体、正方体的体积,解决一些简单的实际问题。难点:在观察、操作、探索
3、的过程中,提高动手操作能力,进一步发展空间观念。二、说教法学法(一)说教法课程标准中指出:有效的教学活动不能单纯的靠模仿和记忆,动手操作、自主探索与合作交流是学习数学的重要方式。本节课,我将采用动手操作法和引导探究法,组织学生开展丰富多彩的教学活动。(二)说学法数学学习活动充满着观察、操作、推理、比较、交流、实验、模拟等探索性与挑战性的活动,在本节课中,我会积极鼓励学生动手操作、自主探索,合作实践,组织学生认真观察、分析和讨论,突出体现学生在学习过程中的主体性,在解决实际问题的过程中来完成学习探究任务。三、说教学过程(一)、复习导入文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA
4、10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编
5、码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7
6、 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1
7、ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文
8、档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4
9、H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M
10、1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8学习好资料欢迎下载在脑海里回想长方体和正方体的特性,写出他们的表面积的计算方法,并请学生在练习本上画出图形,写出关系式。(二)、创设情境,引入新课告诉大家一个好消息,现在要在操场上修建一个长方体的沙坑,作为运动会跳远的场地,请你帮忙算一算,应该买多少沙子呢?这与我们以前学过的哪些知识有关系呢?(体积)(三)、小组合作,探究新
11、知1、学生拼摆长方体分小组探究:每一组都用12 个小正方体(棱长1 厘米)摆出 4个不同的长方体,记录它们的长、宽、高,并完成下表。长/cm 宽/cm 高/cm 小正方体数量/个 体积/cm3第一个长方体第二个长方体第三个长方体第四个长方体观察长方体的体积与它的长、宽、高有什么关系,与同学说一说你发现了什么共同点和不同点?为什么形状不同而体积相等呢?教师引导:观察自己摆出的长方体长、宽、高的数,除了表示出长方体的长、宽、高的长度外,还表示什么?师生共同归纳:表示长的数,如4,除了表示 4 厘米长外,还表示出一排摆了 4 个 1 立方厘米的正方体。同样的道理,表示宽的数还表示摆了几排,表示高的数
12、还表示有几层。文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:C
13、T3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE
14、2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA1
15、0J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码
16、:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7
17、HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 Z
18、A10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8学习好资料欢迎下载引导学生观察表内数据并分析:长方体的体积大小,与哪些因素有关?2、操作验证,归纳提升第一组:请同学们摆出一个长4 厘米,宽 3 厘米,高 2 厘米的长方体,说出它的体积。(一排摆出 4 个 1 立方厘米的正方体,一共摆了 3 排,摆
19、 2 层)第二组:同上要求摆出长3 厘米,宽 3 厘米,高 2 厘米的长方体。第三组:想象一个长5 厘米,宽 4 厘米,高 3 厘米的长方体,说出体积。记录数据,填入下表长(cm)宽(cm)高(cm)体积(cm3)推导:请同学们观察这些从实际操作中得出的数据,思考这些数据与长方体的体积有没有关系?是什么关系?教师板书长方体的体积公式:长方体的体积=长*宽*高V=a*b*h=abh 3、正方形体积的推导小组讨论,当长宽高都相等时,这是什么样的长方体?通常我们都叫它什么体?那它的体积该怎样求呢?文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z
20、3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5
21、A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1
22、J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F
23、4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5
24、R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4C1J8Q8文档编码:CT3F4Z3X4H7 HE2B5R5A1M1 ZA10J4
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