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苏教版教材五年级数学下册“确定位置”单元的教学内容,是在本套教材一年级上册结合10的认识,用一个“第几”确定直线上物体的位置及二年级上册“位置和方向”中,凭借学生的生活经验用两个“第几”确定平面上物体位置的基础上,引导学生用数对的知识确定平面上点的位置的教学。这部分知识对学生来说,虽然有以上知识、生活经验作为基础,但它又是首次采用数学的方法——数对,来确定平面上点的位
Supiao version of teaching materials in the fifth grade mathematics under the book “position ” unit of teaching content is in this set of textbooks combined with the understanding of the first grade, with a “number ” to determine the position of objects and grade two On the basis of the student ’s life experience, we use two “number ” to determine the position of the object on the plane, and guide the students to use the knowledge of pairs to determine the position of the point on the plane. This part of knowledge for students, although the above knowledge, life experience as a basis, but it is the first time using mathematical methods - number of pairs, to determine the point of the plane bit