曾读过这样一段话:余味是衡量一样东西好坏的重要标准。无论什么,如果真的好,就该在拥有之后,在经过之后,在结束之后,还留存美好的记忆,令人流连不舍,久久难忘。好课何尝不是如此呢?时间在不知不觉中流逝,师生沉浸在美妙的课堂体验之中,课毕,学生舍不得离开,教者舍不得离开,莫名的感动在师生心中渐渐漾开…… Have read such a passage: aftertaste is an important measure of the quality of things. No matter what, if it is really good, it should be in possession, after passing, after the end, but also to retain good memories, it is lingering, long unforgettable. Time is unknowingly passing, teachers and students immersed in the wonderful classroom experience, the class completed, the students could not bear to leave, the teacher reluctant to leave, inexplicable move in the hearts of teachers and students gradually Yang Kai ...