现代教育理论认为,数学课堂教学是师生共同设问、解问的过程,是以问题的提出与解答为核心而展开的。课堂提问,不仅是学生学习的主动性的起点和贯穿学习过程的主要线路,也是联系教师和学生之间的桥梁。问题是数学的心脏,在教师备课的过程中,要结合教材,通过尽心设计提出具有启发性的问题,在特定条件下提出让多数学生有“上当受骗”的感觉 Modern education theory holds that mathematics classroom teaching is a common process of asking questions and answering questions between teachers and students, and is based on questions and suggestions. Classroom questions are not only the starting point of student learning initiative and the main route through the learning process, but also the bridge between teachers and students. The problem is the heart of mathematics, teachers in the process of lesson preparation, we should combine teaching materials, through dedication to design inspirational questions, under the specific conditions made most students feel “deceived ”