物理概念是整个物理学知识的核心,它是学习物理学,理解物理公式含意,掌握其法则、规律等知识的基础,同时也是学生特别是初中学生在学习中感到枯燥无味、难以掌握的一个关键。因此,教师在教学中灵活运用多种教法,抓好概念教学是提高教学效果激发学生学习能效的重要手段。 The concept of physics is the core of the whole physics knowledge. It is the basis of learning physics, understanding the meaning of physical formulas, mastering its laws, laws and other knowledge. It is also a key for students, especially junior middle school students, to feel dull and difficult to learn. Therefore, teachers use a variety of teaching methods in teaching flexibility, do a good job of concept teaching is to improve teaching effectiveness to stimulate students to learn energy efficiency is an important means.