在教育界，盛传着“要给学生一碗水，教师必须有一桶水”。此言对教师知识和能力的要求主要是一种数量的储备，似乎越多越好。但我们不得不考虑，教师桶中水的质量如何？目前的学校里，教师满足、留恋、固守一桶死水的现象并不少见。有的教师的教案稳定有余，变化不足，几乎是 In education, it is rumored that “a bowl of water must be given to students, and teachers must have a bucket of water.” This statement of teacher knowledge and ability requirements is mainly a quantity of reserves, it seems that the more the better. But we have to think about the quality of the water in the teacher's barrel? The current school, teachers meet, nostalgia, cling to a barrel of stagnant water is not uncommon. Some teachers' lesson plans are stable and underdeveloped, almost