思维能力是智力的核心 ,思维能力的培养对学生当前的学习和未来的发展有着关键性的作用。教学中一个巧妙的提问 ,常常可以一下子打开学生思维的闸门 ,使他们思潮翻滚 ,有所发现和领悟 ,收到“一石激起千层浪”的效果。美国心理学家布鲁纳曾经说过 :“向学生提出挑战性的问题 ,? Thinking ability is the core of intelligence. The cultivation of thinking ability plays a key role in students’ current learning and future development. An ingenious question in teaching can often open the gates of students’ thinking at once, making their thoughts roll, discovering and comprehending, and receiving the effect that “one stone provokes a thousand layers of waves”. The American psychologist Bruner once said: “Challenging students with challenging questions?