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著名数学教育家波利亚曾说过:“问题是数学的心脏”。古希腊哲学家、教育家苏格拉底最早开创了问答式教学的先河。所谓问答式教学,就是教师围绕一定范围的内容,根据学生所学到的知识,结合他们所了解到的情况进行提问,由学生作出回答。在中学数学教学中,教师根据课堂情况、学生的心理状态和教学内容的不同,适时地提出经过精心设计、目的明确的问题,这对启发学生的思维、改变老师的教学方式与学生的学习方式、发挥学生的主观能动性、提高教学效率有着很大的作用。
The famous mathematical educator Polya once said: “The problem is the heart of mathematics.” Socrates, an ancient Greek philosopher and educator, pioneered the question-and-answer type of teaching. The so-called question-and-answer teaching is that the teacher asks questions based on the knowledge of the students and the situations they have learned, and the students answer them. In middle school mathematics teaching, teachers timely put forward issues that are well-designed and have clear goals according to the classroom situation, students’ psychological state and teaching content. This inspires the students’ thinking, changes the teaching methods of the teacher and the students’ learning methods. It plays an important role in giving play to students’ subjective initiative and improving teaching efficiency.