规律探索问题在中考中经常见到,要求学生通过阅读、观察、分析、猜想等来探索规律,体现了“由特殊到一般”的数学思想方法,考查了学生的思维能力和创新思想.规律探索问题在中考中常以两种形式呈现,一是代数的规律,二是几何图形的规律.一、代数的规律例1(1)观察下列面一列数:1,-2,3,-4,5,-6,… Regular exploration questions are often seen in senior high school entrance examination. Students are required to explore the law through reading, observing, analyzing and guessing, reflecting the mathematical thinking method of “from special to general” to examining students’ thinking ability and innovative thinking. Regular exploration of the problem in the senior high school entrance examination often appear in two forms, one is the law of algebra, and the other is the law of geometry.An Algebraic Rules Example 1 (1) Observe the following sequence of numbers: 1, -2, 3, -4 , 5, -6, ...