预习是物理高效课堂的支柱和保障,是实现学生“主动学习,全面发展”的前提。教师应指导学生进行科学、有效的课前预习,让学生通过预习提前进入一个精彩纷呈的物理世界,从而为学生今后的全面发展、终身学习奠定良好的基础。 Pre-learning is the pillar and guarantee of the physics-efficient classroom, and it is the premise of realizing students’ active learning and comprehensive development. Teachers should guide students in scientific and effective pre-reading, so that students can advance into a brilliant physical world through previewing, so as to lay a good foundation for students’ all-round development and lifelong learning.