哈伯特说“:对于一只盲目航行的船来说,所有的风都是逆风。”同样道理,课堂教学中,教师如果目标不明,也会吃力不讨好,白费功夫观课过程中,我们发现目标不明主要存在以下几种情况:目标过多,贪多求全;目标过高,荒了自己的地种了别人的田;目标过低,把学生当零起点;目标偏离,差之毫厘,失之千里。《礼记·学记》中有这样一段话:学者有四失,教者必知之。人之学也,或失则多,或失则寡,或失则易,或失则止,此四者,心之莫同也知其心,然后能救其失也。教也者 Harbert said: “For a blindly sailing ship, all the winds are against the wind.” "In the same way, teachers in classroom teaching, if the goal is unknown, will not be thankless and overwhelming , We found that there are mainly the following situations in which the goal is unknown: the goal is too much and the problem is too much; the goal is too high and the others have their own land; the goal is too low, the students start from zero; the goal is deviated, the difference Minute, lost thousands of miles. In Book of Rites School, there is a passage like this: When scholars have lost four, they must know it. Human learning, or loss of more, or loss of widowed, or the loss of easy, or loss of the stop, the four, the heart of each other also know the heart, and then to save its loss also. Teach also