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【教学内容】北师大版四年级上册第80~82页。【教学目标】1.知识目标:结合座位图,经历探索在方格图上用数对表示位置的过程,体会数对与方格图上的点的对应关系,了解数对的意义,发展符号意识。2.能力目标:结合具体的问题,掌握在方格图上用数对表示位置的方法,能根据数对确定位置,由位置写出数对,直观感受直角坐标系。3.情感目标:在数对的探索与应用中,体会知识的价值,激发学习兴趣。
【Content】 Beijing Normal University version of the fourth grade on the 80 ~ 82 pages. 【Teaching objectives】 1. Knowledge goals: In conjunction with the seat map, experience the process of using the number on the square grid to represent the position, the number of pairs of points on the grid chart and understand the relationship between the number of pairs, the development of symbols awareness. 2.Capacity goals: In combination with specific problems, grasping the method of expressing a position in a grid graph by using pairs of numbers means that the position can be determined according to the number pairs, the number pairs can be written from the position, and the rectangular coordinate system can be intuitively felt. 3. Emotional goals: In the exploration and application of number pairs, experience the value of knowledge, stimulate interest in learning.