现代教学理论认为,数学的教学就是数学思维活动的教学.因此,在数学教学中,创设条理清晰的思维活动层次,让学生亲自参与整个思维活动过程,这将有利于提高学生的思维探究能力.通常情况下,我们的教学活动有三种情形:①数学概念的教学;②数学公式、定理、性质的教学;③解题教学.对此三种情形,怎样创设思维层次呢?最好的办法是科学设问, According to modern teaching theory, mathematics teaching is the teaching of mathematical thinking activities, therefore, creating a clear level of thinking activities in mathematics teaching and allowing students to participate in the whole thinking activity process will help to improve students’ ability of thinking and exploring. Under normal circumstances, our teaching activities have three situations: ① mathematical concepts of teaching; ② mathematical formulas, theorems, the nature of teaching; ③ problem-solving teaching. In these three cases, how to create the level of thinking? The best way is Science asked,