在当今的课堂上,要想提高数学课的有效性,我认为要提高问题设计与提问的质量,那么教师应在授课前和授课中分别做好三个把握,授课前的三个把握为:1.把握好教材通过对教材的认真钻研,理解编者的意图,弄清单元章节的构成及其地位,掌握训练的基本要求,从而能够脉络清晰地分出重点、难点,从教学目的出发,以重点为突破口,设计出恰当的问题。这样使好的问题既有利于揭示数学本质,又有利于学生养成思考的习惯。 In today’s classroom, in order to improve the effectiveness of maths class, I think to improve the quality of problem design and questioning, teachers should make three grasps before and during lectures respectively, three pre-lectures are as follows: 1. Grasp the textbook By careful study of textbooks, comprehension of the editor’s intent, to understand the composition of the unit chapters and their status, to master the basic training requirements, so as to be able to clearly distinguish the key points and difficulties, starting from the teaching purposes to Focus on the breakthrough, to design the appropriate issue. Such a good question not only helps to reveal the nature of mathematics, but also helps students to develop the habit of thinking.