以前我在批改数学作业时,对的都打“√”,错的均打“×”。此法弊端有二:一是学生不知错因,订正时浪费时间,浪费笔墨!(如有一学生因抄错题目而做错,他以为是粗心而错,只顾订正,不查错因,连续订正八次都没有改好,最后经教师点拨方知错因);二是:不利于发展学生智力。最近我采用五种记号法,学生普 In the past, when I changed my math homework, I hit “√” on both sides, and the wrong ones hit “x”. This law has two disadvantages: First, students do not know the cause of the error, a waste of time when the correction, waste of ink! (If a student because of the wrong title and made a mistake, he thought it was careless and wrong, just correct, not wrong, continuous correction Eight times did not improve, and finally by the teacher told us the wrong party); second is: not conducive to the development of student intelligence. Recently, I use five notations, students Pu