【引言】高效课堂,是指教育教学效率或效果能够有相当高的目标达成的课堂,是有效课堂的最高境界,是基于高效教学。然而如何构建高效课堂?如何变革课堂教学方式和学习方式?今天我们又该怎样去教?围绕这些问题和困惑,在新课程背景下,以如何处理“教”与“学”的关系,不断尝试、总结、提炼提出了“三五二高效课堂模式”。“三五二高效课堂模式”中“三”指教学设计分三步走,即课前预习——课内探究——课后辅导;“五”指课堂设计五环节,即 【Introduction】 Efficient classroom refers to the classroom that the efficiency and effectiveness of education and teaching can reach to a very high goal. It is the highest level of effective classroom and is based on efficient teaching. However, how to construct an efficient classroom? How to change the classroom teaching methods and learning methods? How can we teach them today? On these issues and puzzles, under the new curriculum background, how to deal with “teaching” and “learning” Relationship, keep trying, summarizing, refining proposed “three five two efficient classroom model.” “Three five two high efficiency classroom mode ” “Three ” refers to the instructional design in three steps, that is, pre-class preview - in-class exploration - after-school counseling; which is