在目前的教育环境下,课时紧、任务重是大部分一线化学教师的感觉。如何提高教学效果是许多化学老师面临的重大难题。我认为,在当下构建有效课堂教学是解决这一难题的必由之路。所谓“有效教学”是指在有限的时间内采取最合适的教学方式,充分发挥学生的主体性,让学生获得最有效的知识和能力。因此在教学活动中,教师必须关注课堂,关注学 In the current education environment, class hours are tight, the task is the feeling of most front-line chemistry teachers. How to improve the teaching effect is a major challenge faced by many chemistry teachers. In my opinion, to build an effective classroom teaching is the only way to solve this problem. The so-called “effective teaching ” refers to the most appropriate teaching methods in a limited time, give full play to the students' subjectivity, so that students get the most effective knowledge and ability. Therefore, in teaching activities, teachers must pay attention to the classroom, concerned about learning