17. The instrument Type: Peer observation Why this instrument?! An excellent way to have a close eye on the teaching quality and effectiveness. It’s like a checkup whether instructors ,or even students, have any particular issues or not . The main goals of this instrument are to evaluate the range of instructor’s roles and how they support students’ understanding, and investigate the level of interaction . Another important point to be evaluated, is the software itself by checking some technical features to assess the flexibility of using within instruction .