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乘法运算定律教学建议篇一
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乘法运算定律教学建议篇二
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乘法运算定律教学建议篇三
整数乘法运算定律推广到分数乘法是在学生已经掌握了分数乘法计算、整数乘法运算定律的基础上进行教学的。面对新的课程改革，教师首先应该改变教学的行为，即把对新课程的理解转化为自觉的教学行动。这就要求教师在教学行为的层面上，呈现出新课程的所蕴涵的新的教育理念和新的教学方式。在教学“整数乘法运算定律推广到分数乘法”这一课后，反思这节课中存在的问题，应该从以下几方面改进：
1、树立学生自信心，尤其爱护后进生，培养学生口算心算、勤动手勤动脑的习惯。并对学生的多样思维应加大评价力度。评价一个孩子，要适时，适当，决不能敷衍，更不能抹杀，否则可能会压制孩子的思维积极性。这一点，在今后的教学中，我还要继续加强。
2、课前对学生学习效果估计不足，所以使一些事先设计好的练习没来得及做完。这也提醒我，备课，不仅要备教材，备教案，更重要的还是要备好学生，这是上好一堂课的关键。
3、上课时复习的时候应该安排一些整数乘法简便运算的题目，帮助学生回忆简便运算，为本课的简便运算打好基础。
4、例题6中本来只有前面2道题，但是备课时拔高了难度，多加了2道较难的简便运算题目，在前面复习时没让学生回忆、做做类似的整数乘法混合运算题，所以学生做题效果不理想。
总之，通过本节课，使我在教育教学理念上有了很大的转变和提高。我认为，在落实新课改的精神上，只有做到了让教为学服务，让学生充分从事数学活动，提供学生自主探索、合作交流的机会，提高他们的思维，培养他们的创新能力，才能真正提高教学质量。
乘法运算定律教学建议篇四
在本节课的教学中，抓住学生的感悟，利用了知识迁移是方法，使学生能用乘法的运算定律使一些小数的计算简便，并能灵活运用地进行四则运算，提高了学生的计算能力。
先让学生通过对整数乘法运算定律的`回忆，熟悉运算定律在在整数运算中的运用，在利用计算比较是学生感悟运算定律在小数乘法中同样适应。
首先出示几个算式
0.71.2○1.20.7
（0.80.5）0.4○0.8（0.50.4）
（2.4＋3.6）0.5○2.40.5＋3.60.5
让学生先观察每组算式有什么特点，实际上这三组算式分别运用的是整数乘法的交换律、结合律、分配律，但是这三组算式都是小数乘法，也符合吗？因此可以先让学生猜测，再进行验证。通过验证，学生发现整数乘法的运算定律在小数乘法中确实适用。先猜测再验证是学生学习数学的最基本的办法，也是科学的世界观养成的基础。在这一环节中，教师的作用只是引导点拨，决不把规律强加给学生，而是让学生自己去猜测、发现、验证。
学到了知识，然后用学到的知识去解决问题才是数学学习的真谛。既然发现了整数乘法运算定律在小数乘法中同样适用，再运用这些定律使小数计算变得简便，这一步教学能激起学生运用新知识的欲望。接着出示
0.254.784 4.80.25
0.65201 1.22.5＋0.82.5
在简算的过程中让学生体验成功的快乐。
本节课是一节典型的利用旧知识迁移新知识的课，学生已经对整数乘法运算定律掌握得很好，但是这些运算定律到底是否适合于小数乘法，也是这节课要探究的主要内容。因此这节课让学生先猜测，再验证，从而得到这些运算定律同样适用于小数乘法。然后就用得到的这个规律来对一些小数乘法进行简便运算。本节课始终遵循着猜测验证应用的教学主线，使学生始终亲身体验参与知识的结构过程。
