数学开放题作为近几年来在数学教育界比较热门的一个话题，已经引起越来越多的学者的注意，关于开放题数学教学的期刊、文献层出不穷，在教学中引入数学开放题已经成为教师教学的一大特色。开展数学开放题教学，不仅仅是对传统的封闭题教学的一个补充，还可以培养学生的创新精神，提高学生的创新意识，以及数学发散性思维能力。本文以自己实习期间的听课记录和上课的实际情况为例，通过参阅国内外的相关文献、书籍，对开放题在高中数学教学中的具体应用方面进行研究，从而归纳总结出开放题在高中课堂教学中有哪些体现形式，以及目前开展开放题数学教学需要注意的一些问题。

Mathematical open-ended questions have become a hot topic in mathematics education in recent years and have attracted the attention of more and more scholars. The journals and literatures on open mathematics teaching are endless, introducing mathematics open questions in teaching has become a major feature of teacher teaching. The teaching of mathematics open-ended questions is not only a supplement to the traditional closed-question teaching, but also can cultivate students' innovative spirit, improve students' sense of innovation, and mathematics divergent thinking ability. This article takes the actual record of the lectures and the actual situation of the class during the internship as an example. By referring to relevant literatures and books at home and abroad, this paper studies the specific application of open questions in high school mathematics teaching, and concludes the open questions in the high school classroom. What are the manifestations in the teaching, as well as some issues that need to be paid attention to in the current open mathematics teaching.