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二次函数是代数与几何的有机结合,而三角形面积问题又是其中重要的一部分,是函数的综合应用能力的提升,也是近年来中考卷压轴题的考查热点.二次函数这部分内容可渗透的数学思想多,解题方法多,老师在讲述这些题目时一定要注意循序渐进把握好梯度.在探究这些问题时,首先要让学生加深对函数知识的回顾,同时要注重数学思想的渗透,培养学生用数
Quadratic function is the combination of algebra and geometry, and the triangle area problem is one of the important part, is the function of the integrated application ability to enhance, but also in recent years, the test paper curl axis test hot spot. This part of the quadratic function permeable Of the mathematical thinking, many problem-solving methods, teachers in the presentation of these issues must pay attention to step by step to grasp the gradient.In exploring these issues, we must first enable students to deepen the review of the function of knowledge, should pay attention to the infiltration of mathematical thinking, training Students use the number