几何概型是一种特殊的概率模型,也是一种最基本的数学模型.几何概型是高中数学课程改革中的新增内容,概念比较抽象,因此解答此类问题应立足模型建构的定位,抓住关键特征,突出本质,以便准确理解这种概率模型.下面对几何概型的常见模型作一归纳分析.1 1个变量的几何概型与长度、角度有关 Geometry is a special probability model, but also a basic mathematical model.Geometry profile is a new content in the high school mathematics curriculum reform, the concept is more abstract, so to answer such questions should be based on the positioning of the model construction, Grasp the key features, highlighting the nature in order to accurately understand this probability model. The following general analysis of the geometric model of a general inductive analysis.1 1 geometric variables with the length and angle