探索课题式教学在大学物理实验中的应用——以测量微小线度为例

Exploring the Application of Project-Based Teaching in College Physics Experiments—A Case Study on Measuring Microscopic Linear Dimensions

摘要: 课题式教学是一种以学生自主学习为主，教师指导为辅的教学模式，是把传统的教学模式转变为教师指导下的学生自主式学习的素质教育。本文以微小线度的精确测量为例，分别采用千分尺、空气劈尖和单丝衍射三种实验方法测量金属丝直径，并应用最小二乘法处理实验数据，旨在将该实验作为课题式教育的案例之一。

Abstract: Project-based teaching is a teaching model that emphasizes students’ independent learning with the teacher’s guidance as a supplement. It transforms the traditional teaching mode into a student-centered learning approach under the teacher’s guidance, which is a form of quality-oriented education. This paper takes the precise measurement of small dimensions as an example, and measures the diameter of a metal wire using three experimental methods: micrometer, air wedge, and single-slit diffraction. The least square method is applied to process the experimental data. The aim is to use this experiment as one of the cases of project-based education.