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1、1/4 学习方案设计授课年级三年级学科数学课题多位数乘一位数的估算任课教师课型问题发现生成课课时授课时间40 分学习目标1、在具体、生动的情境中，使学生经历整十、整百数乘一位数的估算过程，学会估算方法。2、引导学生独立思考、合作交流。体验计算方法的多样化。3、培养学生从数学的角度观察周围世界的习惯，激发学生学习的兴趣。重点难点整十、整百数乘一位数的估算方法。理解整十、整百数乘一位数的估算过程。学习方法1、情境教案法：创设情境，让学生在具体情景中学习数学，感受数学的有用。2、自主探究学习法：在教案中发挥学生的主体作用，充分放手让学生自主学习，在解决问题的过程中，尊重学生的思考方法，鼓励运用多种方
2、法解决问题。3、合作讨论学习法：学生课前利用结构化预习方法进行充分预习，生成重点和关键问题，为课堂中的探究讨论打下了基础，课堂上通过小组合作讨论，各抒己见，教师再适当点拨归纳。4、展示学习法：通过在组内、全班展示学习成果，分享学习过程，形成多元对话。关键问题会用已有的知识迁移类推出几十乘几的估算方法，进而通过观察、比较、类推出整十、整百、整千数乘一位数的简便算法。教案准备师：1、问题解决评价单；问题训练评价单2、设计学习方案。3、问题生成评价单生：1、利用结构预习六字诀进行预习。2、与老师共同完成、评价问题解决评价单。3、尝试解决 71页练习十五中的问题。4、填写问题生成评价单学 习 过程设计
3、程序时间教师行为期望的学生行为创设情境，问题呈现2分钟1、出示问题解决评价单，呈现问题。2、教师提出本课的学习要求1、明确本节课研究的问题。2、学习积极性高，专注。2/4 自主学习，合作讨论6分钟1、巡视学生学习活动情况。2、发现问题及时指导。1、根据问题解决-评价单进行自主学习2、在组内由学科长组织讨论，解决不了的问题可以在组间交流。3、一组同学展写在黑板上4、两名学术助理在班中巡视。展示交流，规范评价18 分钟1、组织学生以小组为单位进行展示2、倾听3、组织对话。4、情境刺激，总结方法5、指导学困生。6、规范指导：算法多样化与最优化。1、分小组自主、自信、大方展示2、全班交流，形成多元对话
4、。3、能抓 住关 键 问 题：“怎 样 转化”和重点问题：“转化后多种计算”展开充分讨论。4、用多种方法解决问题。问题训练，合作指导11 分钟1、指导2、评价3、激励1、认真审题，独立思考，自主完成问题训练评价单上1、2 问题。2、遇到问题与同学交流。3、组内合作编题。4、分组展示归纳概括，提升意义3分钟1、谈话：同学们，大家从知识、数学思想方法、数学与生活关系等方面谈感悟本节课的收获。2、倾听。3、评价。1、总结归纳，提炼升华。2、积极思考，自信大方。3、有持续探究问题的愿望。课后反思文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3
5、B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6
6、T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3
7、B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6
8、T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3
9、B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6
10、T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3
11、B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E53/4 多位数乘一位数的估算 问题解决评价单班级：组名：姓名：时间：设计者：吴伟华审核人：【学习目标】1、在具体、生动的情境中，使学生经历整十、整百数乘一位数的估算过程，学会估算方法。2、引导学生独立思考、合作交流。体验计算方法的多样化。3、培养学生从数学的角度观察周围世界的习惯，激发学生学习的兴趣。【重点难点】1、整十、整百数乘一位数的估算方法。2、理解整十、整百数乘一位数的估算过程。【学法提示】1、自主结构化预习法 2、自主探究学习法 3、小组合作讨论法4、展
12、示学习法【预习评价】1.口算604=500 7=80 6=9000 20=308=400 9=50 6=9000 9=2、预习课本 70 页。每张门票 8 元，29 个同学参观，带 250 元钱够吗？3、计算过程中，你遇到了什么问题？怎么解决？4、以此类推，214，可以把 21 当成（）口算，所以214（）486，可以把 48 当成（）口算，所以 486（）5、能自主解决 70 页做一做中的题吗？完成在书上并与小组同学交流一下吧。6、通过学习你觉得多位数乘一位数估算注意什么？文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3
13、E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5
14、文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3
15、E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5
16、文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3
17、E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5
18、文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3
19、E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E54/4【我的疑问】：【四元评价】自我评价：同伴评价：学科长评价：教师评价：文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编
20、码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X
21、8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编
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23、8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编码:CL6F2J1H3B5 HU3E1X8N1Z9 ZU8H6T7N3E5文档编
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