九年义务教育初中物理教学大纲的特点之一是,对知识的教学提出分层次要求,更为具体、明确.它有助于教学中把握知识的深度和广度,突出重点,不平均用力.具体的教学要求按“知道”、“理解”、“掌握”和“会”的层次提出. One of the characteristics of the ninth-year compulsory education syllabus for junior middle school physics is that it requires different levels of specific knowledge and teaching for the teaching of knowledge. It helps to grasp the depth and breadth of knowledge in teaching, highlights key points, and does not use average force. The teaching requirements are presented in terms of “know”, “understand”, “master” and “will”.