实施素质教育，除需要教师转变教学观念外，一个重要的问题是改变教学模式，改革教学方法，尽快走出“高耗低效”的误区，创出一条“低耗高效”的教学之路。造成高中教学“高耗低效”的原因主要有三个：一是教师对教学质量观未能有科学的认识，对能力未能有正确的理解。单纯认 In order to implement quality education, in addition to requiring teachers to change their teaching concepts, an important issue is to change the teaching mode and reform the teaching methods so as to get out of the erroneous zone of “high consumption and low efficiency” as soon as possible so as to create a “low consumption and high efficiency” teaching way. There are mainly three reasons that cause high school and inefficient teaching in high school: First, teachers fail to have a scientific understanding of the concept of teaching quality and fail to correctly understand their abilities. Simple recognition