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在初中数学的教学中,二次函数是一个重点,也是一个难点。作为中考中重要考点之一,二次函数常常在考试中以综合题目形式出现。初中阶段二次函数的学习重在对二次函数性质的理解和图像的掌握,以及学会使用图像研究它的性质,解决应用问题。学生在学习和使用二次函数时,往往因为对专属名词的不理解,或是对二次函数不理解而造成学习困难。本文将对初中生在学习和应用二次函数时遇到的困难、原因以及提高其对二次函数的理解能力的策略进行阐述。
In junior high school mathematics teaching, quadratic function is a key, but also a difficulty. As one of the important test centers in the test, the quadratic function often appear in the examination in the form of comprehensive questions. The secondary function of junior high school focuses on the understanding of the nature of the quadratic function and image mastery, as well as learn to use the image to study its nature, to solve the problem of application. When students learn and use quadratic functions, they often encounter learning difficulties because they do not understand the proper nouns or do not understand the quadratic functions. This article will explain the difficulties encountered by junior high school students in learning and applying quadratic functions, their causes and strategies to improve their understanding of quadratic functions.