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初一代数,是整个初等代数的基础。初一代数比起小学数学来,内容更加丰富,抽象;思维方法也有较大差异。而我们的教育对象却具有年龄小,抽象思维能力差,持久学习自制能力弱的特点。针对这一情况,我县许多学校十分重视这一问题。正如黄梅彦语:开头好,是个宝。下面、就我县一些学校在初一教学中的实践,谈谈肤浅的作法。一重视感性知识,讲清数学概念讲数学概念,只是要学生背熟有关条条,其结果学生学起来枯躁,用起来对不上号,任何真知都是从实践中开始的。要想让学生有清晰的数学概念,必须从学生生活知识、生产知识出发,从感性到理性,讲清概念。这样学生记得深,理解得透,用得活。例如,代数课学生首先接触的就是正负数的概念。我们从“反义”词出
The first generation number is the basis of the entire elementary algebra. Compared with primary school mathematics, the first-generation mathematics are richer in content and more abstract; thinking methods are also quite different. However, our educational objects are characterized by their young age, poor abstract thinking ability, and weak self-control ability for lasting learning. In response to this situation, many schools in our county attach great importance to this issue. As Huang Meiyan said: It is a good beginning and it is a treasure. The following, on the practice of some schools in my county in the first day of teaching, talk about superficial practices. Emphasizing perceptual knowledge, clarifying the concept of mathematics and stressing the concept of mathematics, it is only necessary for students to become familiar with relevant rules. As a result, students learn to take advantage of the facts, and to use them does not matter. Any true knowledge begins with practice. To make students have a clear mathematical concept, we must start from the student’s life knowledge and production knowledge, and from perceptual to rational, clarify the concept. In this way, the student remembers deeply, understands thoroughly, and can use it lively. For example, the concept of positive and negative numbers is what the students in the algebra class first come into contact with. We read out from the word “antisense”