论文部分内容阅读
在当前小学数学教学中,如何加强小学数学教材中的字词教学,以培养学生的科学态度和钻研精神,是值得探讨和研究的。本文试就几个实例谈谈对这一问题的看法。一、一字之差不可小看数学概念、公式、法则中的每一个字,都是非常重要的,不能随意改换,更不能随意增删。如果在钻研教材、备课和讲授时掉以轻心,就要导致教学的失误,使学生获得的是片面的、错误的知识。例如,一位教师教学三角形概念时,通过日常生活的实例、教具的演示后,让学生用三根小棒摆弄,并提出了这样一个问题:“三角形是由几条线段组成的?什么样的图形是三角形?”结果学生回答出:“三角形是由三条线段组成的,由三条线段组成的图形叫三角形。”把“围成”说成了“组成”,一个“围”、一个“组”,一字之差,导致面貌皆非。三
In the current primary school mathematics teaching, how to strengthen word teaching in primary school mathematics textbooks to cultivate students' scientific attitude and study spirit is worth exploring and researching. This article tries to talk about this view on a few examples. First, the difference between the word can not be underestimated Mathematical concepts, formulas, laws in every word, are very important, not free to change, but can not be arbitrary additions and deletions. If you study textbooks, prepare lessons and teach lightly, it will lead to teaching mistakes, so that students get one-sided, wrong knowledge. For example, when a teacher teaches the concept of a triangle, having an example of daily life and a demonstration of the teaching aids teach the student three small sticks, he asks a question like, “What kind of figure does the triangle consist of? Is a triangle? ”As a result, the student replied:“ A triangle is made up of three lines, a triangle made up of three lines. ”The word“ enclose ”is said to be a“ composition, ”a“ circumference, ”a" The difference between the words, leading to the appearance. three