课堂教学需要“润滑剂”,诸如笑话、幽默、谜语、故事、趣味实验、精彩表演等。它能对课堂教学产生润滑作用——使无味的知识变为有趣的讲解,使枯燥的内容化为有意义的记忆,使学生从被动、拘谨的听讲转为积极、主动的思考。教师如能讲得趣味横生,学生自然学得轻松活泼。在课堂教学中使用“润滑剂”应追求以下几方面效果: Classroom teaching requires “lubricants,” such as jokes, humor, riddles, stories, fun experiments, great shows and more. It can lubricate classroom teaching - turning boring knowledge into interesting explanations, turning dull content into meaningful memories, and moving students from passive, cautious listening to proactive, proactive thinking. If teachers can talk about fun, students naturally learn relaxed and lively. The use of “lubricant” in classroom teaching should pursue the following effects: