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1 使学生认识概念的产生和发展在教学中应使学生了解:任何一个数学概念都是客观世界具体事物的本质属性经过抽象和概括的结果,任何被定义的对象都是客观存在的。还应该让学生认识到:在一定的学习阶段里,概念是确定的,但由于生产发展的需要,有些概念将随知识的增加而不断地发展深化,不是永恒不变的,即概念的确定性是相对的。例如角的概念,从锐角、钝角、平角、周角和任意角,
1 to make students understand the concept of the emergence and development of teaching should make students understand: Any one of the mathematical concepts are the essential attributes of the objective world Specific things Through abstract and generalized results, any object is defined as an objective reality. It should also make students realize that in a certain stage of learning, the concept is definite, but due to the needs of the development of production, some concepts will continue to deepen with the increase of knowledge, and will not last forever. That is, the certainty of the concept Is relative. For example, the concept of angle, from acute angle, obtuse angle, angle, angle and arbitrary angle,