二次函数内容发展主线上的连贯性考查——2023年天津市中考数学体现出的思维特质

Coherence Examination on the Main Line of the Development of Quadratic Function Content:The Thinking Traits Reflected in Mathematics in the 2023 Tianjin High School Entrance Examination

2023年天津中考数学二次函数内容的试题,综合了图形与几何相关知识,注重对二次函数基础知识的考查,意在加深学生对函数本质的理解和性质的运用。试题重视函数与其他知识的内在联系,关注数学知识内容的结构性和整体性,聚焦数学思想和方法,要求学生数形结合地研究函数问题,发展几何直观,提高解决问题的能力。试题命制关注课程标准倡导的新变化新要求,进行了积极的尝试和探索。题目搭建了多种解题路径,为培养学生创新意识、选拔培养创新人才提供了条件。对二次函数主题内容的教学,要突出主干内容,构建函数知识体系,感悟用函数知识解决问题的思想方法,不断丰富学生的经验,提升其分析问题和解决问题的能力。

Item 25 of the 2023 Tianjin High School Entrance Examination takes the content of quadratic functions as the carrier,integrating knowledge related to graphics and geometry,emphasizing the examination of basic knowledge of quadratic functions,deepening the understanding of the essence of functions and the application of their properties.It pays attention to the internal connection between functions and other knowledge,and pays attention to the structure and integrity of mathematical knowledge content.It focuses on mathematical ideas and methods,studying function problems through a combination of numbers and shapes,developing geometric intuition,and improving students'problem-solving abilities.We have actively attempted and explored the new changes and requirements advocated by the curriculum standards.At the same time,the design of the questions has established various problem-solving paths,providing conditions for cultivating students'innovative awareness and selecting and cultivating innovative talents.For the teaching of quadratic function theme content,we should highlight the main content,build a function knowledge system,comprehend the thinking methods of using function knowledge to solve problems,and continuously enrich students'experience,so as to enhance the ability to analyze and solve problems.