全概率公式和贝叶斯公式教学方法探究

The Exploration of the Teaching Method of the Full Probability Formula and Bayes Formula

"全概率公式"和"贝叶斯公式"是概率课程教学的重点和难点,用途较广,但公式复杂难于记忆。为了让学生能理解公式的用途和内涵,运用一个例题一张图,利用"数形结合"思想让问题更直观,引导学生自主写出公式,以便学生能更好地记忆、理解并运用。

＂Full probability formula＂ and ＂Bayes formula＂ are the key and difficult points in the teaching of probability curriculum, and they are widely used, but the formulas are difficult to rememher. In order to let students understand the purpose and content of the formulas, and guide them to write the formulas, the writer uses an example and a figure, namely, using ＂number-shape combination＂ thinking, to make the problem more intuitive, so that students can better memorize, understand and use them.