随着新课标的推广实施,各地出现了不少与其它学科相互渗透、相互交叉的数学新题型,这不仅体现了数学的实际应用性,而且可以有效地考查学生适应新问题、接受新知识综合运用各科知识解决实际问题的能力．本文就物理中平面镜与数学有关的问题举例如下． With the promotion and implementation of the new curriculum standard, many new mathematics questions that intersect with and intersect with other disciplines have emerged in various places. This not only embodies the practical application of mathematics, but also can effectively examine students’ adaptability to new problems and accept new knowledge. Comprehensive use of knowledge of various subjects to solve practical problems. This article gives an example of the issues relating to plane mirrors and mathematics in physics.