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四则运算在小学数学学习过程中占有很大的比重,是学习其它知识的基础。正确理解四则运算的意义和四则运算之间的关系,又是学习四则计算的基础,也是解答应用题分析数量关系的依据。因此在学生第一次接触运算意义的时候,就要把握最佳时机,让意义在学生思考与活动中有效生成。[案例]:新世纪版教材二年级上册,《儿童乐园》(乘法的意义)。2014年9月15日,103中小学部二年八班。教学
Four arithmetic in primary school mathematics learning process occupies a large proportion, is to learn the basis of other knowledge. Correct understanding of the meaning of the four operations and the relationship between the four operations, but also to learn the basis of the four calculations, but also to answer questions based on quantitative analysis of the relationship between applications. Therefore, when the students contact the computing meaning for the first time, it is necessary to grasp the best time for the meaning to be effectively generated by students’ thinking and activities. [Case]: New Century Edition textbook grade two, “Children’s Paradise” (meaning of multiplication). September 15, 2014, 103 Primary and secondary schools two years and eight classes. teaching