想要提高课堂效益,首先要发挥教师的主导作用,“常规武器”就是备课、讲课、作业等基本教学环节的设计与落实。一、精心设计教学活动教师在组织教学活动之前必须制订好教学目标,提高对教育对象的认识,认真钻研教学内容,选择教学方法,设计好教学程序。传统的化学教学片面强调知识和技能目 Want to improve classroom efficiency, we must first play a leading role of teachers, “conventional weapons ” is the preparation and lectures, homework and other basic teaching design and implementation. First, well-designed teaching activities Before organizing teaching activities, teachers must formulate good teaching objectives, raise awareness of educational targets, carefully study teaching content, choose teaching methods, and design good teaching procedures. One-sided emphasis on traditional chemistry teaching knowledge and skills