In preparation for Ohio's "End-of-year" test, I created this assignment.
It corresponds to our textbook [Pearson's Geometry Common Core text] and utilizes the online resources our school uses [Apex, MathXL, and PearsonRealize]. This is a word document though so you could substitute your schools text and resources - wouldn't even have to be for Geometry or even math!
As a way of differentiating, I had each student record his/her grades. Students who struggled with content were assigned more review work and those who already showed they mastered the content (by their course grade) had less required review work. I gave them this paper a good 4 weeks before the deadline (and before spring break) so that students could strategically pace themselves.