As the students enter the room, I hand out the Do Now. This activity is intended to focus the students' minds on the concepts in this chapter, and to answer any lingering questions. As the students finish the Do Now, I collect and read them, and then address any questions with the class as a whole.
I provide each student with the Unit Test, as well as a straight edge and compass. I caution the students to read the questions carefully, to draw diagrams whenever a diagram is not given, and to show their work both neatly and completely. I let them know that time should not be a factor and that I am looking for quality of work, not speed!
When a student is finished with a test, there is the question of how to keep him or her busy while others are still working. I discuss my approach to this in my Test Days video narrative. I also think the activities I use are a great way to help students persevere in solving problems (MP1).
Some of my sources for post-test activities and problems include:
Ken-Ken: My students are hooked on Ken-Ken! It's similar to Sudoku, but with mathematical operations. Will Shortz books are my favorite because they are just the right size to photocopy, but there are lots of sources available. Here's a sample. Ken-Ken can also be found on NCTM's Illuminations site.
NCTM's magazines: The NCTM magazines always include challenging problems. In Mathematics Teaching in the Middle School, it's the Palette of Problems; in Mathematics Teacher, it's the Calendar Problems. Another NCTM source is Problems to Ponder.
24 Game: I use the original single digit set (there are many different varieties of cards available), and write the numbers from one card of each level on the board or on a handout. I believe it is now an iTunes app as well.