“位置与方向”是人教版九年义务教育课程标准实验教科书《数学》三年级下册的第一单元。现对该单元教材予以解读,以供课改实验区教师备课时参考。一、教材的编写意图和特点1.素材富有现实性空间方位的知识与观念源于现实生活。从学生感兴趣的、熟悉的现实生活中选取素材,有利 “Position and direction” is the first unit of the third grade of the third grade compulsory mathematics curriculum standard experiment textbook of the People’s Education Publishing House. The unit is now to read the teaching materials for curriculum reform pilot lesson preparation lesson reference. First, the textbook intent and characteristics of writing 1 material realistic space orientation of knowledge and ideas from real life. It is advantageous to select materials from the familiar and real life students are interested in