二次函数的概念教学在提高学生数学核心素养中的应用

Application of Concept Teaching of Quadratic Function in Improving Student Mathematics Core Literacy

对二次函数的概念教学在提高学生数学核心素养中的应用进行分析。在学习二次函数之前,要先复习回顾曾经学过的函数,然后进行情境创设、问题探究、引入新知,并对概念进行再次巩固,让学生进行自主练习,最后进行课堂小结。在课堂教学中,可以从以下几方面来培养学生的数学核心素养:挖掘到二次函数更深层次的东西以及涉及的相邻领域,清楚领悟到不同数学知识之间的逻辑关系。教师应启发和鼓励学生逐渐归纳出二次函数形式的基本特征,最后带领学生一起总结得出二次函数的概念。在明确数学课程目标过程中,教师应提出生活中所必需的数学基础知识、基本技能、基本思想、基本活动经验,并通过启发、鼓励、引导等方法让学生感受到数学思想。数学核心素养的价值主要体现在解决实际问题中,要让学生通过数学建模等新技能来发现问题、解决问题。

The research analyzes the application of concept teaching of quadratic function in improving student mathematics core literacy.Before learning quadratic function,students should review the function they have learned,create situation,explore problem,introduce new knowledge,consolidate the concept,make students self-determination exercise,and summary the course content.In course teaching,we can train student mathematics core literacy from the following aspects,including exploring the deep connotation of quadratic function and the related field,and clearly understanding different logistic relationship of different mathematics knowledge.In clarifying the process of mathematics course aim,teachers should provide the mathematics basic knowledge,basic technique,basic thinking and basic activity experience which are necessary in daily life,and should make students know mathematics thinking through enlightenment,encouragement and guidance.Mathematics core literacy value mainly represents in solving practical problems.Teachers should make students find problems,and solve problems through mathematics modelling.