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现实情景二次函数是初中数学教学的重点和难点之一,二次函数在初中函数的教学中有重要地位,它不仅是初中代数内容的延伸,更为高中的学习奠定了基础。本节课是二次函数的复习(1),立足于对二次函数图像和性质的归纳和应用,其它有关于二次函数图像的运动和实际应用等有关知识,则会在后续的复习课中进行。而本节复习课是建立在二次函数的新知已经全部讲授完毕,需要通过复习让学生进一步理解二次函数的概念、掌握二次函数图像和性质;能够灵活运用二次函数和其它的有关知识解决综合问题。
The quadratic function of the actual situation is one of the most important and difficult points in the mathematics teaching of junior high school. The quadratic function plays an important role in the teaching of junior high school functions. It not only extends the content of junior high school algebra but also lays the foundation for higher school learning. This lesson is a review of quadratic functions (1). Based on the generalization and application of quadratic function images and their properties, other related knowledge about the movement and practical application of quadratic function images will be given in the following review sessions In. The review class is based on the quadratic function of the new knowledge has been fully taught the completion of the need to review through the students to further understand the concept of quadratic function to grasp the quadratic function of the image and nature of the flexibility to use quadratic functions and other related knowledge Solve comprehensive problems.