减负提质是当今教育发展的必然趋势,也是摆在教师面前的一个严峻课题。本文作者结合初中科学教学实践,从有效预习、充分备课、改革课堂教学模式,即采用“学案导学”模式等方面对如何实现“减负提质”进行了研究和思考。 Lightening the burden on quality is an inevitable trend of education development, but also placed in front of teachers is a serious issue. Based on the practice of science teaching in junior high school, the author of the paper studies and thinks about how to achieve “lightening and improving” from the aspects of effective preview, adequate preparation of class, reforming of classroom teaching mode, that is, using “learning and teaching” mode.