Purpose of the peer review
In both instances, the purpose of the peer review was to provide a way of giving feedback to students on photographs that they had taken. The outcome to be that the students would recognise the positives and potential improvements which could be made to their work and the process of how to make those improvements.
In the classroom environment, feedback was much lengthier with more explanation on how to physically make improvements. One student went to great lengths to try to recreate a photograph to show how to make corrections whilst the others in the group would jump into the discussion when appropriate.
In the MOOC environment, feedback tended to be one or two lines of text, with less constructive feedback or instruction and more "pat on the back" type feedback.
Peer review in both environments offers the chance for students to learn from each other and glean knowledge from a larger group than a single grader alone.
However comparing these two courses, it can be said that peer review by a group who occupy the same physical space as opposed to online environment is more meticulous and full.
It can also be seen that the tutor plays a vital role in guiding and leading in the review and no matter how carefully written the guidance materials, without the presence of a guide to interject where necessary, misunderstandings can go uncaught and risk devaluing the process for students.