论文部分内容阅读
《中小学数学(小学版)》2009年第12期刊登了刘新敏的《由师生各唱各的调引发的思考》一文,刘老师在文中介绍:教学中学生在发现分数的基本性质后,总结概括规律时,没有按照书中的原话去说,而是说成了:分数的分子、分母同时扩大或缩小相同的倍数,分数的大小不变。上课老师要求学生必须按书上的说法去说。刘老师由此对这位青年教师的随堂课进行了深刻的反思,他认为“教师教学前对学生了解不够,预设
”Primary and secondary mathematics (primary school)“ 2009 the twelfth issue of Liu Xinmin’s ”by the teachers and students sing the tone of thinking“ one article, Liu introduced in the text: the teaching of students in the discovery of the basic nature of the score, concluded To generalize the law, we did not follow the original words in the book, but instead said: The numerator and denominator of the fraction expand or contract the same multiple at the same time, and the magnitude of the fraction remains unchanged. Class teacher asked students to say according to the book. Teacher Liu thus conducted a profound reflection on the young teacher’s class, he said ”Teachers do not know enough about students before teaching, the default