关于磁体初中学生已有一定的生活体验和实验经历,因此知识建构相对容易,而磁场则成为本节课的教学难点,其原因为学生缺少感性认识,磁场是一种抽象的物质,看不见、摸不着.本节教学设计以学生为主体,以磁为主题,构建了一个学生自主合作、探究的教学过程. Magnet junior high school students already have some life experience and experiment experience, so knowledge construction is relatively easy, but the magnetic field has become the teaching difficulty of this lesson, the reason for the lack of perceptual knowledge of students, the magnetic field is an abstract material, invisible, This section teaching design to students as the main body, with magnetic as the theme, to build a student’s own cooperation and exploration of the teaching process.