child psychology 4

I am on assignment 17 and at the end of the lesson it talks about carrying out a practical exercise and that later on in assignment 18 there will be a report on my findings.  My question is where and when is this expected to be delivered? In the assignment tests there is no mention of submitting a report of my own so I don't know if this is an additional optional part of the course.  Can anyone advise me?
Thanks