《可能性》一课是(人教版)三年级数学上册的教学内容,第一课时主要是教学事件发生的不确定性和可能性。本课的教学目标是“学生初步体验有些事件的发生是确定的,有些则是不确定的”。“可能性”是新课程教材中出现的一个全新的教学内容,属于“统计与概率”这一知识领域的“概率”范畴。概率知识比较抽象,小学生理解起来有一定的困难。所以,我在教学本节课时,让学生多观察多实验,在亲自实践和体验的游戏中获得确定性和不确定性的直观感受,从而获得有用的概率基础知识,用来解释生活现象,为全面地分析问题,作出一些简单的判断和推理奠定基础。在这节课 The “Possibility” lesson is the teaching content of the third grade math book (PEP). The first lesson is mainly about the uncertainty and possibility of teaching events. The teaching objective of this lesson is “Students initially experience the occurrence of certain events as being definite, while others as uncertain”. “Possibility ” is a brand new teaching content appearing in the new curriculum textbook, belonging to the category of “probability” in the field of “statistics and probability”. The probability of knowledge is more abstract, primary school students understand that there are certain difficulties. Therefore, when I was teaching this lesson, I made students observe more experiments and obtained the intuition of certainty and uncertainty in the game of hands-on experience and experience, so as to obtain a useful probability basis for explaining the phenomenon of life. A comprehensive analysis of the problem, to make some simple judgments and reasoning to lay the foundation. In this lesson