When going through the course material, the section on having students grade one another's assignments stood out to me. I am interested in hearing the thoughts on this particular time saving technique. I can see how it could be efficient for the professor, but I am concerned about the students may altered one another's answers in order to improve the students' grades. The students may view it as an opportunity to help each other out. If anyone has attempted to use this technique, how has it worked out? Have you encountered any difficulties?