《义务教育数学课程标准(2011年版)》提出,要培养学生的数学活动经验。“数学活动经验”的概念是什么?在实践中又如何经历、改善?文章以“可能性大小”一课为例,从数学基本活动经验的特征、培养方式和落实三个方面出发,阐述对数学基本活动经验的浅显认识。 “Compulsory Education Mathematics Curriculum Standard (2011 Edition)” proposed to develop students’ experience in math activities. What is the concept of “math activity experience” and how to experience and improve it in practice? The article takes “Possibility Size” as an example, from three aspects: the characteristics of basic math experience, training methods and implementation Set out, explain the basic understanding of mathematical experience.