2. Here’s an idea for exit tickets. Make a grid with 3 by 3 inch boxes and write each of your student’s names in a different box. Place your grid on the wall near the door. Have your students complete their exit tickets on a sticky note, and stick them in their box on the grid as they leave class. This system makes it easy for students to hand in their exit slip and even easier for the teacher to grade. It is best used for reflective exit slips, as students could cheat on a skills-based or assessment-style exit slip.
3. Mathmistakes.org is a site is about compiling, analyzing and discussing the mathematical errors that students make. It is edited by Michael Pershan, a middle school and high school math teacher from NYC.
4. Manifold is an origami style game by The Incredible Company. It challenges players to take a small sheet of paper with scattered black and white boxes and fold it such that all the white boxes appear on one side and all the black boxes appear on the other. While it isn’t tied to any topic or standard, this is a fun activity in spatial reasoning that will either frustrate or leave you addicted.
6. (Extra Credit) Dueling Piano bars are the best.