论文部分内容阅读
高三数学复习,最大矛盾就是时间紧,任务重,要求高,很多教师和学生都疲于应付海量题目.数学家波利亚说过:“一个有责任心的教师与其穷于应付繁琐的数学内容和过量的题目,还不如适当地选择某些有意义但又不太复杂的题目去帮助学生发掘题目的各个方面,在指导学生解题的过程中提高他们的才智与推理能力.好问题同某种蘑菇有些相像,它们都成堆地生长,找到一个以后,你应当在周围找一找,很可能附近就有好几个.”数学课堂教学中,变式教学就是数学教育家波利亚所说的“蘑菇”.笔者通过多年高三教学,发现变式教学的五个
In the third year of mathematics review, the biggest contradiction is that the time is tight, the task is heavy, and the requirements are high. Many teachers and students are struggling to deal with massive problems. The mathematician Polya said: “A responsible teacher is not as good at coping with the tedious mathematics. Content and excessive topics are not as appropriate as choosing some meaningful but not too complex topics to help students explore various aspects of the topic and improve their intelligence and reasoning skills in guiding students in the process of solving problems. Some kinds of mushrooms resemble each other. They all grow in piles. After you find one, you should look around. There are probably many nearby places. “ In mathematics classroom teaching, variational teaching is the math educator Polya. The author said ”Mushrooms". Through many years of high school teaching, the author discovered five variant teaching methods.