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华罗庚说:“宇宙之大,粒子之微,火箭之速,化工之巧,地球之变,生物之谜,日用之繁,无处不用数学。”数学,源于生活,服务生活。作为教师,只有让学生真切地感受到数学很有用,而且学起来很简单,他们才会爱上数学,万万不能让数学教学游离于学生的生活。而现行的数学教材,虽说课本上每个知识点,都被编者精心设置了情境,但因教材使用的范围比较广,不一定能贴近每一个学生的生活,而且就我多年的教学经验而言,有些情境不但无益,而且有害。下面以人教版小学数学教材三年级上册为例,说明我的想法。
Hua Luogeng said: “The universe, the micro-particles, the rocket’s speed, the cleverness of the earth, the Earth’s change, the mystery of life, the complex of daily use, everywhere mathematics. ” Mathematics, from life, service life. As teachers, it is only for students to feel that mathematics is really useful and that it is easy to learn. They fall in love with mathematics, and mathematics teaching should never be left out of the student’s life. However, the current mathematics textbook, although every knowledge point in the textbook, has been carefully edited by the editor of the situation, but due to the wide range of textbooks used, not necessarily close to each student’s life, and in my years of teaching experience Some situations are not only useless, but also harmful. The following PEP teaching math textbook third grade as an example to illustrate my ideas.