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【主题概述】2013年4月,我校举行了45岁以下教师的同课异构教学活动,结合课题,我们五年级数学教研组开展了《分数的基本性质》的同课异构研究,此案例是我在本次活动中研究磨砺的结晶。《分数的基本性质》是人教版《义务教育课程标准实验教科书数学》五年级下册的内容。这节内容是学生在学习了商不变的性质及分数与除法关系的基础上进行教学的,它又是今后学习约分和通分的依据,而约分和通分又是分数四则运算的重要基础。因此,
【Topic Overview】 In April 2013, our school held a co-curricular heterogeneous teaching activity for teachers under the age of 45, and in conjunction with the subject, our fifth grade mathematics teaching and research group carried out the same-class heterogeneous study of “the basic nature of the scores” It is my study of honed crystallization in this activity. The “basic nature of the scores” is the content of the fifth grade of the fifth edition of the PEP curriculum “Compulsory Education Curriculum Standard Experimental Textbook Mathematics”. The content of this section is that students are taught on the basis of learning the invariable nature of business and the relationship between the scores and the divisions. It is also the basis for learning about points and passing points in the future, while the points and points are in fractional four operations Important foundation. therefore,