“可能性”是《标准》第一学段新增设的内容,人教版小学数学实验教材安排在三年级上册。这部分内容是概率知识的初步渗透。概率一直是高等数学的教学范畴,多数小学教师缺少相应的知识储备,因此,在理解教材、把握教学目标和组织课堂教学时都可能出现困惑与偏差。本文就以上三方 “Possibilities” is a newly added content in the first paragraph of the “Standard”, and PEPP elementary mathematics experimental teaching materials are arranged in the third grade. This part is the initial penetration of probability knowledge. Probability has always been the teaching category of advanced mathematics. Most primary school teachers lack corresponding knowledge reserves, so confusion and deviation may occur in understanding teaching materials, grasping teaching objectives and organizing classroom teaching. This article on the above three parties