Keep your mind sharp all year long with Mathematics 2022: Your Daily Epsilon of Math , a 12" ? 12" wall calendar featuring 12 images relating to math concepts! Let mathematicians Rebecca Rapoport and Dean Chung tickle the left side of your brain by providing you with a math challenge for every day of the year . The solution is always the date, but the fun lies in figuring how to arrive at the answer, and possibly discovering more than one method of...