The following concepts are covered in video: Basic Arithmetic, Negation, Grouping Symbols, Fractions (proper, improper, mixed numbers), Decimals (including Repeating Decimals, something NOT covered in the calculator guidebook!), FractionDecimal Conversions, Pi (π), Squares, Reciprocals, Powers/Exponents, Square Roots, Rationalizing Denominators, Cube Roots, and Nth Roots. Video is designed to look great on small or big screens, and is perfect for classroom presentations.