英语翻译 Researchers are also in agreement that the maximum usefulness of the feedback occurs when the comments are returned immediately,or at least very soon.Comments that are delayed beyond application to the next homework set have lost a great deal of its value.Surveys indicate that students often do not even read the comments on the homework if it is returned too late to be applied to the next assignment. The amount of time to accomplish the assigned homework must be considered with respect to both the superior and the slower students.As Doyle and Barber [4] noted,“- - teachers almost invariably think an assignment will take less time than students actually spend on it”.What appears easy to you may require many hours of work for your students,especially those who are having difficulty.One technique to estimate the amount of time required by the student is to multiple by three or four the time that it took the instructor,or grader,to do the homework.
