有专家做了这样一个调查:发现目前中小学教师的无效劳动大约占50%。这一调查结果虽然有点夸张,但有一点可以肯定,这就是目前中小学教学尤其是课堂教学,其无效或低效教学的现象确实普遍存在。因此,认真进行有效教学,克服无效教学的确刻不容缓。一、什么是有效教学课堂教学可分为 Some experts have done such a survey: found that primary and secondary school teachers about 50% of invalid work. Although the result of this survey is somewhat exaggerated, one thing is certain. This is the fact that the current ineffective or inefficient teaching of primary and secondary education, especially classroom teaching, is ubiquitous. Therefore, it is imperative to conscientiously carry out effective teaching and overcome ineffective teaching. First, what is effective Teaching can be divided into classroom teaching