What tips and strategies do you have for assessing learning (to see if you have 80%) without students copying off one another when sitting in rows?

If you are checking for students understanding or conducting observational assessment, you should be able to observe whether a student has a grasp of the content/concept. Students who have mastered the content won't need to copy. Be observant. If a student is looking around as their first response, or immediately appealing to the teacher, there is a good chance they haven't reached mastery. You can assess that...