The intent is that you will practice steadily through the semester, not only practicing all the material, but also having time to reflect on that practice. Keep track of the time that different practices take and don't become more than 3 hours ahead of schedule. If you are going to be behind schedule, contact the professor as soon as you know and file reports on time for any week that comes up short.
In the event of group practice, each group member is expected to separately file a report on each week's practice.
Note that the format and/or focus of the weekly reports will doubtless evolve across the semester, so keep an eye on the comments that appear on your reports as well as any general discussion of how to make a good report.
Note: the deadline on this final report is rather firm. Since this class does not have a final exam, marks are due in quickly after classes end.