高中数学抛锚式教学模式探讨——以“等差数列前n项和”为例

Discussion on Anchored Teaching Mode of High School Mathematics—Taking “The Sum of the First n Terms of an Arithmetic Sequence” as an Example

建构主义是一项重要的现代教育理论,抛锚式教学是高中课堂教学中一种重要模式。从建构主义视角分析抛锚式教学模式对高中数学教学具有十分重要的指导意义。文章首先梳理建构主义基本观点,明确抛锚式教学模式的涵义及原则;然后基于新课标理念重新审视传统教学模式,分析抛锚式教学的必要性与可行性;最后以“等差数列前n项和”为例从设锚–抛锚–解锚–升锚四个环节探讨抛锚式教学模式在高中数学课堂中的设计思路。旨在提升学生的数学思维,以更好地培养学生数学核心素养。Constructivism is an important modern educational theory, and anchored instruction is an important mode in high school classroom teaching. It is of great guiding significance to analyze the anchored teaching mode from the perspective of constructivism for high school mathematics teaching. This paper first sorts out the basic viewpoints of constructivism, and clarifies the meaning and principles of the anchored teaching mode. Then, based on the concept of new curriculum standard, the traditional teaching mode is re-examined, and the necessity and feasibility of anchored teaching are analyzed. Finally, taking “the sum of the first n terms of an arithmetic sequence” as an example, this paper discusses the design idea of anchored teaching mode in high school mathematics classroom from the four links of anchored-anchored-unanchored-anchored-up. It aims to improve students’ mathematical thinking and better cultivate students’ mathematical core literacy.