德国教育家赫尔巴特说:“关于你究竟是一名优秀的教育家还是一名拙劣的教育家,这个问题非常简单:你是否发展了一种机智感!”俄国教育家乌申斯基也说过:“不论教育者怎样地研究教育理论,如果他没有教育机智,他不可能成为一个优秀的教育实践者”。这就要求我们教师在课堂教学中,面对千变万化的教学情景,要具有迅速、敏捷、灵活、准确地做出判断、处理,以保持课堂平衡的能力。 Herbart, a German educator, said: “The question of whether you are a good educator or a poor educator is very simple: have you developed a sense of witness!” “Russian educator Ursins He also said: ”Regardless of how educators study educational theory, he can not become a good education practitioner if he has no educational resource." This requires that our teachers in the classroom, in the face of ever-changing teaching scenarios, to have a rapid, agile, flexible and accurate judgment, handling, in order to maintain the ability of classroom balance.