随着教学改革的进一步深入,《初中数学课程标准》的有关理念已深入人心.《标准》在繁杂的数字和代数式运算、较困难的几何证明的要求上有较大幅度的降低.很多的地方中考命题方面都想出奇出新,而“网格”具有一定的优势,具有易操作、可量化的特征,“网格题”在这样的背景下应运而生,旨在倡导学生积极参与、乐于探究、勤于动手,重在考查学生搜集和处理信息的能力、获取新知识的能 With the further deepening of the teaching reform, the concept of “junior high school mathematics curriculum standards” has been deeply rooted in the hearts of people. “Standards” in the complex numbers and algebraic operations, more difficult to reduce the requirements of the geometric proof.Many places “Grid ” has some advantages, with easy to operate, quantifiable features, “grid problem ” in this context came into being, designed to promote students Actively involved, willing to explore, diligent, focused on examining students ability to collect and process information, access to new knowledge