Wolfram Alpha may be a data geek's dream, but if you're not all that interested in its more obscure uses, here's one thing we could all use a little help with: step-by-step math calculations. Just ...

Proceedings of the American Mathematical Society, Vol. 132, No. 12 (Dec., 2004), pp. 3491-3502 (12 pages) We educe an orthonormal system of step functions for the interval [0,1]. This system contains ...

This study is an attempt to analyze students' construction of function based problem solving methods in introductory algebra. It claims that for functions to be a main concept for learning school ...