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【教学内容】苏教版五年级上册教科书第1~2页例1、例2、练一练,第5页1~4题。【教学目标】1.了解生活中的负数,会正确地读、写负数,知道0既不是正数,也不是负数。能在实际问题中用正数、负数表示意义相反的量。2.在认识负数的过程中,初步体会数的扩展,进一步发展数感和符号意识。3.体验数学与生活的密切联系,享受创造性学习的乐趣。【教学重点】理解正数和负数的含义,知道正数、负数与0的关系。
Teaching content】 【Sujiao version of the fifth grade textbook on the first 1 to 2 cases 1, Example 2, practicing a practice, page 5 1 ~ 4 questions. Teaching Objectives 1. Understand the negative numbers in life, will correctly read and write negative numbers, that 0 is neither positive nor negative. In practical problems with positive numbers, negative numbers that the opposite meaning. 2. In the process of recognizing the negative number, we will initially understand the expansion of numbers and further develop the sense of number and symbolic awareness. 3. Experience the close connection between mathematics and life and enjoy the fun of creative learning. 【Teaching】 Understand the meaning of positive and negative, know the positive, negative and 0 relationship.