命题者往往在代数类试题中设计一些审题障碍或解题陷阱,既能考查同学们的基础知识是否全面、基本功是否扎实,又能考查同学们的数学思维是否缜密,还能考查同学们的数学思想方法和数学能力是否达标.对同学们来说,稍有不慎,极易落入题中的圈套或陷阱,造成失分.如能全面地分析问题,掌握一些解题技巧或套路,那么解这类问题也就“有章可循”了. Proponents often design some questions in the algebra class questions or problem solving trap, both to check whether the students' basic knowledge is comprehensive, the basic skills are solid, but also to check students' mathematical thinking is meticulous, but also test the students' math Ideological methods and mathematical ability is standard. For students, a little careless, easily fall into the trap or trap, resulting in lost points. If a comprehensive analysis of the problem, master some problem solving skills or routines, then Solutions to such problems also “rule-based”.