学生能否主动参与探究活动,会不会自主探索,关键在于教师的主导作用和发挥水平。那么,在课堂教学中如何把握“引”的时机,促进学生有效地开展数学学习活动呢?一、欲擒故纵—引在思维偏差处——学生的思维出现了偏差,就需要教师的引导,促使学生产生“观念冲突”,从而更全面、深? Students can take the initiative to participate in inquiry activities, will self-exploration, the key lies in the leading role of teachers and play to their level. So, how to grasp the timing of “Citation” in classroom teaching to promote students to carry out mathematics learning activities effectively? First, the temptation to catch the enemy - at the thinking of the Department of deviation - deviation of the students’ thinking, you need teachers to guide students to promote Produce “concept conflict”, which is more comprehensive, deep?