基本图形的分解与重构能力考查:以2023年天津中考数学试题为例

Ability Test of Decomposition and Reconstruction of Basic Graphs:Taking the 2023 Tianjin Senior High School Entrance Examination Questions as Examples

“图形的性质”是数学课程的核心内容,2023年天津中考数学试题重点考查了学生在综合图形中分解基本图形或重新构造基本图形的分析和解决问题能力。对两道图形试题进行评析:一是关注图形,强化关联;二是多解归一,探寻本质。针对“图形的性质”提出三点教学启示:第一,夯实基础,培养识图能力;第二,积累经验,重视一般观念引领;第三,全面联动,发展思维能力。

“The Nature of Graphs”is the fundamental concept covered in the mathematics curriculum.The questions in 2023 Tianjin senior high school entrance examination primarily emphasized students’ability to break down complex graphs into basic components or reconstruct basic graphs to analyze and solve problems.The evaluation for the two graphic test questions are as follows:Firstly,focusing on graphics and strengthening the connection;Secondly,exploring the essence of multiple solutions to one problem.In response to the“nature of the graph”,three teaching inspirations are put forward such as consolidating the foundation and cultivate literacy ability,accumulating experience and paying attention to the general concept of leadership,and linking comprehensively and developing thinking ability.