This episode begins with understanding numbers, the basic key to understanding all mathematical concepts. Throughout, students will see how various methods work and how mathematics is applied in the "real world." Students will also learn the answers to the fundamental questions of "what is adding?" and "what is subtracting?" progressing to the addition and subtraction of fractions, decimals, integers, and, eventually, algebraic polynomials. Grades 3-7. 30 minutes on DVD.