开放题能激发学生内在的学习动机,成为他们数学学习动力的源泉。数学开放题提供给学生一种数学活动,在活动中展示和提高自己的数学才能,在活动中交流体会,增强主体意识,在解决问题的过程中感受数学的美和解决问题的乐趣。数学开放题教学顺应了课改“自主探究、实践体验和合作交流的方式。”一方面,数学开放试题教学提高了学生解决实际问题的能力; Open questions can stimulate students’ internal learning motivation and become the source of their mathematics learning motivation. The mathematics open question provides students with a kind of mathematics activity, shows and improves their mathematics ability in the activity, exchanges experiences during the activity, strengthens the subject consciousness, feels the beauty of mathematics and the fun of problem solving in solving the problem. The open problem mathematics teaching conforms to the curriculum reform “self-discovery, practice experience and cooperation and communication.” On the one hand, the mathematics open test question teaching improves students’ ability to solve practical problems;