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一、立足课本,追求知识点复习的全面性从近几年高考的实际来看,考题大多源于教材又高出教材,高考题虽有难题,但最终都是源于平时的所学,都离不开对最为基本知识的理解,为此对于一轮复习教学,确保课本中基础知识复习的全面性是提高一轮复习效果的前提.笔者建议将课本中有探究价值的例题和习题进行改编,渗透数学思想方法和通性通法.例1已知直线l过点P(-1,2),且相交于两端点为A(-2,-3)和B(3,0)的线段,那么直线l斜率的取值范围为.
First, based on the textbook, the pursuit of knowledge point comprehensive review From the actual college entrance examination in recent years, most of the questions from the textbooks and textbooks, although the problem of college entrance examination, but in the end are derived from the usual learned, are Can not do without the understanding of the most basic knowledge, for a review of teaching, to ensure the comprehensiveness of the basic knowledge in the textbook review is to improve the effectiveness of a round of reviewing the premise of the author suggested that the textbook examples of exploration and exercises adapted , The idea of permeability mathematical method and the method of generality.Example 1 It is known that the line l crosses point P (-1,2) and intersects the line segment with A (-2, -3) and B (3,0) , Then the slope of the line l range of values.