Quirky Letter to the Class

My students love to leave notes for the class to read in the morning. Typically, they remind each other to have a great day and earn extra Golden Hawks (class rewards for positive behavior). Today we walked in and saw this:

It begins with "Dear Paper," (why??? I'm not sure!?!) and ends with a reminder that it's Groundhog Day today. My class cracks me up. What is something quirky that your class does?