Do you understand math? Usually, it's yes or no. For people who said "no", there's Math without calculators. I'll explain how it works. Go to MathWithoutCalculators.com, take a quiz, and watch a video. Then, find the lesson in a workbook and fill out the lesson form. Homework: you need to go over what you filled out with a checker. (Family, friend, or classmate). Why does it work!!! By using a checker, the time is longer to learn the concept plus it uses talking as learning style, which is different form other math textbooks. Student and teachers love it!!!