新课程必须面对的一个问题就是如何使课堂教学效益最大化,有效教学是一个重要的途径。有效教学是指教师在遵循教学活动的客观规律下,以尽可能少的时间、精力和物力投入,取得尽可能多的教学效果,以满足社会和个人的教育价值需求而组织实施的活动。它要求教师拥有有效的教学理念,掌握有效的教学策略,引导学生的有效学习。教师的教学活动要有效果、有效率,有效益。高中化学教学的"有 One of the problems the new curriculum must face is how to maximize the effectiveness of classroom teaching. Effective teaching is an important way. Effective teaching refers to the activities that teachers follow in order to comply with the objective laws of teaching activities, with as little time, energy and material resources as possible, to obtain as much teaching effectiveness as possible, and to meet the educational value needs of society and individuals. It requires teachers to have effective teaching ideas, master effective teaching strategies, and guide students in effective learning. Teachers’ teaching activities must be effective, efficient, and effective. High School Chemistry Teaching