教育家陶行知说:“发明千千万,起点是一问”。学生的思维如一泓平静的湖水,课堂提问就像往湖水中投入一粒石子,让学生的思维活跃起来。保持整个课堂处于“动”的状态,课堂提问设计的好坏,是影响课堂教学效果的重要因素之一。《数学课程标准》指出:数学教学应根据具体的教学内容,注意使学生在获得间接经验的同时也能有机会获得直接经验,即从学生实际出发,创设有助于学生自主学习的问题情境,引导学生通过实践、思考、探索、交流等,获得 Tao Xingzhi educator said: “invented hundreds of millions, the starting point is a question ”. Students think like a calm lake, class questions like a stone into the lake, so that students active thinking. Keeping the entire classroom in a state of “moving”, the quality of classroom questioning design is one of the important factors that affect the effectiveness of classroom teaching. According to the standard of mathematics curriculum, mathematics teaching should pay attention to gaining indirect experience as well as direct experience according to the specific teaching content, that is, starting from the students' actual conditions, creating the problem situations that help students to learn independently, Guide students through practice, thinking, exploring, communicating, etc.