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二次函数是中学代数的基本内容之一,在初级中学教材中,就已经对二次函数进行了比较详细的研究。但由于受到初中生知识基础薄弱,只能死记硬背式理解这部分内容,未能透过公式理解其本质,不能灵活综合应用。进入高中以后,数学的入门课就是二次函数,不仅体现了它的衔接性,更体现了它的外延丰富性。本文我们就以二次函数的学习为例,谈谈如何做好高中数学入门教学。
Quadratic function is one of the basic content of algebra in secondary school, junior high school textbooks, have already carried out a more detailed study of the quadratic function. However, due to the weak foundation of junior high school students’ knowledge, they can only memorize the contents of rote learning, failing to understand their essence through formulas and can not be applied in a flexible and comprehensive way. After entering high school, the introductory mathematics class is a quadratic function, not only reflects its convergence, but also reflects its epitaxial richness. In this paper, we take the quadratic function learning as an example to talk about how to do a good job in high school mathematics introductory teaching.