核心素养背景下的初高中函数概念衔接教学的思考与设计

Reflection and Design on Teaching of the Functions Concept Connection of Junior and Senior High School under the Background of Core Literacy

摘要: 函数的概念是初中和高中函数重要教学内容之一，它具有一定的延续性和阶段性，学业质量评价注重中小学教学内容衔接上的整体把握，而传统的概念告知型教学模式无法满足学生对概念的理解，学生不了解概念的来龙去脉就很难掌握概念的内涵本质，最终会影响学习效果以及学科核心素养的落实。该篇章从学科核心素养培育的角度出发，分析初高中函数概念衔接教学的现状、问题的成因并给出优化策略：1) 把握阶段目标，建立可发展的概念内涵；2) 找到前后内容衔接点，注重函数发展过程，促进知识的迁移与同化；3) 实施多样教学模式，构建核心素养。最后，结合提出的策略对高中函数的概念进行教学设计。

Abstract: The concept of functions is one of the important teaching contents of middle and high school functions, which has a certain continuity and periodicity. Academic quality evaluation focuses on the overall grasp of the connection between primary and secondary school teaching content. However, the traditional concept informing teaching model cannot meet the understanding of concepts by students. If students do not understand the background of concepts, it is difficult to grasp the essence of their connotations, which will ultimately affect learning effectiveness and the implementation of core subject literacy. This chapter starts from the perspective of cultivating core competencies in the discipline, analyzes the current situation and causes of problems in the teaching of functional concepts in middle and high schools, and provides optimization strategies: 1) Grasp stage goals and establish developable conceptual connotations; 2) Find the connection points between the content before and after, pay attention to the process of function development, and promote the transfer and assimilation of knowledge; 3) Implement diverse teaching modes and build core competencies; finally, design teaching for the concept of high school functions based on the proposed strategies.