《机械基础》是军械士官的专业基础必修课,旨在为学员保养和维修军械装备奠定理论基础,本文结合《机械基础》学科的特点,对教学实践中引用实例、理清知识脉络及运用比较讲授法教学方法进行了探讨。《机械基础》是一门机械类综合性较强的应用技术基础课程,主要包括工程力学、工程材料、公差配合与技术测量和机械原理四大知识模块。其中工程材料学部分主要以金属材料为研究对象,教学目标一是了解材料的性能,会根据材 The “mechanical foundation” is a compulsory course for basic knowledge of ordnance officer. It aims at laying a theoretical foundation for trainee to maintain and repair ordnance equipment. Based on the characteristics of “mechanical foundation” discipline, this paper makes reference to examples in teaching practice, Lecture teaching methods were discussed. The “Mechanical Foundation” is a comprehensive basic mechanical engineering applied basic course, including engineering mechanics, engineering materials, tolerances and technical measurement and mechanical principles of the four knowledge modules. One part of engineering materials mainly metal materials for the study, the first goal is to understand the performance of materials, materials will be based on