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1、五佛学区高效网络教研五部曲案例年级学科单元课题责任教师二年级数学四1.铅笔有多长课时目标1.通过估计与测量等活动，知道1 分米和 1 毫米的长度，初步建立长度单位的观念，发展估测能力和动手操作能力。2.通过独立思考与合作学习，初步明确米、分米、厘米和毫米之间的关系，会用所学的知识和方法解决实际问题，体验成功的快乐。3.通过自评与互评，发展学生的反思评价能力。教学要求1.知道 1 分米和 1 毫米的长度，初步建立长度单位的观念，发展估测能力和动手操作能力。2.通过独立思考与合作学习，初步明确米、分米、厘米和毫米之间的关系，会用所学的知识和方法解决实际问题，体验成功的快乐。3.通过自评与互评，发展
2、学生的反思评价能力。重点难点重点：通过测量铅笔的长度，亲身体验1 分米和 1 毫米有多长。难点:理解并掌握米、分米、厘米和毫米之间的进率关系。教具学具米尺导学方法自主实践，自主探究、合作交流主要流程创设情景、探究新知、提出问题、合作探究、汇报交流、体验感悟、实践应用、巩固练习、课堂小结单元主题内容特色以活动为主，亲身体验1 分米和 1 毫米有多长，激发学生学习兴趣。教学程序纲要教学活动环节步骤实验教师评改记录一、创 设 情景，导 入新课活动一：目标通过估计、测量与联想，产生1 分米长度单位，建立“1 分米”的长度观念。1、组织学生以小组为单位，估一估 10 厘米红色纸条的长度。记下来，再量一量
3、它的长度。2、教师引疑自答“象这样 10厘米长还可以用什么单位表示呢？10 厘米也就是 1 分米”。1 分米的长度。介绍“1 分米”也可以写作“1dm”，3、教师引导学生想一想，1复习导入：1、1 米=100 厘米，1m=100cm，师 注意字母的读法。2、观察米尺让学生再次说一说上面我们没学过的刻度，引出新课。文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8
4、 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y
5、3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y
6、8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I
7、5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X
8、2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:
9、CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10
10、J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2文档编码:CZ3Q10J6Y9G8 HJ10Y3M3Q5Y8 ZT8I5V5B8X2二、探究新知三、体验感悟四、实践应用分米是几厘米？（教师板书：1 分米=10 厘米，1dm=10cm。）4、教师组织学生小组讨论交流：1 米是多少厘米？1 米是多少分米？（教师板书：1m=100cm；1m=10dm）活动二：目标通过测量、观察与联想，产生探究的欲望，建立“毫米”的长度观念。2、遇到不是整厘米的怎么办，这就要求我们学习新的长度单位毫米”。1 厘米中的 1 小格长是1 毫米。教师介绍“1 毫米”写作“1mm”，学生读三遍，书写一遍。3、引
11、导学生观察，1 厘米中有几个小格？（10 个小格），1 厘米等于几毫米？（10 毫米），板书：让学生用手比划比划1 分米究竟有多长，加 深对 1 分 米 的认知。实验教师：5、教师引导学生联系生活实际，你见过什么东西的长度大约是 1 分米？1、测量自己的铅笔，同学们注意你的铅笔都是刚好到整厘米处吗？不到整理米处事到几厘米过几小格？新 课标4、比划一下100MM有 多 长，200mm呢？文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W
12、4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9
13、D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W
14、2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R
15、8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7
16、I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM
17、2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY
18、6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4五、课堂小结1cm=10mm。P34/填一填，说一说。3 分米=（）厘米40 毫米=（）厘米说一说，你是怎么想的？教师引导学生联系，说说生活中有哪些东西长度大约是1 毫米、哪些东西长度大约是1 厘米？哪些东西长度大约是 1 分米？同学们，说说今天这节课你有什么收获？文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8
19、W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I
20、9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2
21、W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6
22、R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z
23、7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:C
24、M2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 H
25、Y6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4板书设计铅笔有多长1 米=100厘米 1m=100cm,1 分米=10 厘米 1dm=10cm，1 米=10分米 1m=10dm,1 厘米=10毫米 1cm=10mm 预设说课纲目一、说教学内容二、说教学目标及重难点三、说教法四、说学法五、说教学过程六、说板书设计责任教师：文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10
26、HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 Z
27、Z1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编
28、码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N1
29、0 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7
30、 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文
31、档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9
32、N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4议课审案记录学科教研组长：品课点拨记录“铅笔有多长”引导学生大胆尝试，动手操作。通过各种方式试测铅笔、课本的长度，讨论：你是用什么方法测量的？归纳学生交流的各种方法，互评哪种方法最好，为什么？引导总结。学区教研督导：张举成教学反思实验教师：五佛学区高效网络教研五部曲案例年级学科单元课题责任教师二年级数学四（2）1 千米有多长王中宁课时目标1 通过“走一走”、“估一估”、想一想“等活动，体验1 千米有多长，初步建立千米的空间表象。2 使学生知道 1 千米=100
33、0 米，学会千米和米的简单换算。3 培养学生的观察能力、实践能力，发展学生的空间想象文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9
34、D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4
35、O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D
36、9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2
37、Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8
38、W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I
39、9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4能力，并适时渗透思想教育。教学要求1 体验 1 千米有多长，初步建立千米的空间表象。2 使学生知道 1 千米=1000 米，学会千米和米的简单换算。3 培养学生的观察能力、实践能力
40、，发展学生的空间想象能力，并适时渗透思想教育。重点难点重点：体验 1 千米有多长。难点:通过体验活动，形成对一千米有多长的感性认识。教具学具米尺导学方法自主实践，自主探究、合作交流，主要流程复习导入、探究新知、提出问题、合作探究、汇报交流、体验感悟、实践应用、巩固练习、课堂小结单元主题内容特色以活动为主，亲身体验千米有多长，激发学生学习兴趣。教学程序纲要教学活动环节步骤实验教师评改记录文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W
41、4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9
42、D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W
43、2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R
44、8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7
45、I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM
46、2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY
47、6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4一、创 设 情景，导 入新课二、探究新知一活动导入。同学们，你知道你走一步有多长吗？同学们可能一时想不起来，没关系，请每组选一位同学上来走一走，再请一位同学量一量，不就知道了吗？二玩中学1.走一走。通过实际测量，感受走 100 米用多长时间。请同学们以小组为单位，在操场上走一走，数一数 10 米、100 米大约有多少步，分别用了多少时间，并做好纪录。回到教室，先让学生汇报自己的步测结果，在说一说走完100 米后有什么感受。1估一估。通过刚才学生的亲身感受，猜测思考 1 千
48、米的长度。（1）刚才我们测量出100 米大约实验教师：文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6
49、D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z
50、4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9D9N10 HY6R8W4O6D7 ZZ1Z7I9D9Z4文档编码:CM2W2Q9