美国著名数学家哈尔莫斯曾说:“问题是数学的心脏。”在数学教学中,从概念的形成与深化,新知识的巩固与应用,学生思维方法的训练与提高,无不是围绕着“问题”展开,并在研究问题、解决问题的过程中逐步实现的。因此,问题式教学是一种基本的、有效的课堂教学方法。那么,数学教学中应如何以“问题”为主线,设计一个“好”问题呢?一、问题要“趣味性”学生学习需要一定的情境。真实的问题情境是学习发生的土壤,教师采取有效的知识呈现方式,激起学生的学习渴望,使学生 Harmuth, a famous American mathematician once said: “The problem is the heart of mathematics.” In mathematics teaching, from the concept of formation and deepening, the consolidation and application of new knowledge, training and improvement of students’ thinking methods, are not Around the “problem ” start, and in researching and solving problems gradually realized. Therefore, problem-based teaching is a basic and effective method of classroom teaching. So, mathematics teaching should be how to “question ” as the main line, the design of a “good ” problem? First, the question to “interesting ” students need certain situations. The real problem situation is the soil where the learning takes place. The teachers take an effective way of presenting knowledge and arouse the desire of the students to learn so that the students