数学课既要生动有趣,又要扎实有效,是每一位数学教师力求达到的目标。一节优质高效的数学课,往往不是它的教学模式有多么的科学,而是课堂上每一个环节的设计都充满智慧:从课前的情境引入,到课上的探究活动,从练习的设计,再到教师的评价,都是提高课堂效率的必然条件。所以,要想达到高效的境界,就要在备课上下足功夫,对每一个细节都要进行认真的思考:如何创设问题情境;探究活动如何进行;该提出哪些问题;面对所提问题,学生会有哪些可能性的回答;对学生的 Math class should be both lively and interesting, but also solid and effective, is the goal of every mathematics teacher to achieve. A high-quality and efficient math class, often not how science teaching mode, but the design of every aspect of the classroom are full of wisdom: from the introduction of pre-class situations, to the activities of the inquiry in the class, from the practice of design , And then to the teacher’s evaluation, are inevitable conditions to improve the efficiency of the classroom. Therefore, in order to achieve a high level of efficiency, we must make full efforts in preparation for classes and make careful consideration of every detail: how to create a problem situation, explore how the activity should proceed, and what questions should be raised. In the face of the problems raised, the Student Union What are the possibilities for answering; for students