Most math teachers will agree that the way to learn Algebra is step-by-step. Yet many textbook answer keys offer answers without telling students how to actually solve the problem. Enter MathPapa, the online web app that helps students learn to think through algebraic equations. Readers may like to begin with the Algebra Lessons section where they can learn the system from the ground up. In addition, the Math Practice section includes many practice problems that cover fractions, decimals, percentages, negative numbers, and algebra. The real innovation of the site, however, is the Algebra Calculator. Here students may enter any algebra equation, and the calculator will not only proffer the answer, it will elucidate each step along the way to finding that answer.