Letter to Your Past Self. Think back to yourself at the start of this unit on percent. Write a letter to your past self with suggestions on how to be successful in this unit. Some questions you can answer in your letter: (Select all that apply.) What do you think is important to remember about percents. What do you know now that would have helped you be successful during this unit? How do the things you learned connect to your everyday experiences? What tools or strategies were most helpful for calculating percents? What was confusing? What felt easy to understand? If you could give your past self one piece of advice for calculating percent, what would it be?