“基本活动经验”从《数学课程标准》中单列出来后,很快被一线数学教师接受。本人在执教北师大版五年级下册第41~45页《长、正方体》时,也特别关注了学生的基本活动经验,现将其整理阐述,以期得到同行指正。一、研究学习起点,精心组织材料教学材料的组织与呈现在课堂教学中意义重大,教师要提供利于学生积累数学基本活动经验的学习材料。北师大版教材分两课时安排认识体积、容积 “Basic experience ” from the “math Curriculum Standard” singled out, soon accepted by front-line math teachers. When I was teaching “Long and Square” in the fifth grade of the fifth grade of the undergraduates, I also paid special attention to the students’ basic activity experience. I will arrange and elaborate on them in order to get my colleagues correct. First, the study of learning starting point, well-organized materials The organization and presentation of teaching materials in the classroom teaching, teachers should provide learning materials that help students accumulate experience in basic mathematics activities. Beijing Normal University version of teaching materials arranged in two classes to understand the volume, volume