新课程标准指出:“有效的数学学习活动不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生数学学习的重要方式。由于学生所处的文化环境、家庭背景和自身思维方式不同,学生的数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。”随着新课程改革的逐步推进,学生的主体地位已经受到教师的高度关注,学生“插嘴”的现象也越来越多地出现在数学课堂之上。有的“插嘴”极具价值,有的却有失偏颇。面对学生的 The new curriculum standard states: “Effective mathematics learning activities can not rely solely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange are important ways for students to learn mathematics. Because of the cultural environment, family background and ways of thinking Different, students’ mathematics learning activities should be a lively, active and individualized process. ”With the gradual advancement of new curriculum reform, the dominant position of students has been highly concerned by teachers. Students The phenomenon is also more and more appear in mathematics classroom. Some “interject ” very valuable, while others are biased. Facing the students