I love the use of peer assessment. I especially use it for things that would take me forever to grade. This year I'm going to be attempting to use it for lab reports. Last year, grading lab reports was extremely difficult, because I would need to collect all of their notebooks. I couldn't take them home because there were too many, and they were generally difficult to read through especially if they were disorganized or in poor handwriting. Teachers who have used lab notebooks for years have told me that it takes them 3 weeks to get through grading theirs and then by that time they have more lab reports to grade. How do you feel about peer grading? If you use it, how do you use it in your class?