“概率”是新教材中新增的内容 ,求解概率问题会涉及到许多数学思想 ,在教学中应加以点拨与运用 ,这有助于提高学生的数学素质和思维能力 ,增强学生分析问题、解决问题的能力 .1　 函数方程思想有时从问题出发 ,需要先设好变量 ,建立一个方程或函数式再求解 .例 1　学校文娱队 “Probability” is a new content in the new textbook. Solving the probability problem involves many mathematical ideas. It should be used and used in teaching. This will help improve students’ mathematics quality and thinking ability, and enhance students’ analysis of problems and solutions. The ability of the problem.1 The idea of ​​function equations sometimes starts from the problem. You need to set up the variables first, and then establish an equation or function to solve the problem. Example 1 School recreation team