9th Grade Math Practice Questions to test addition, multiplication, word-problem skills, and basic algebraic skills. Includes answers and explanations. From the Proficiency Building Activities of the NASA Lewis Research...

A=B, by Petkovsek, Wilf, Zeilberger, is a book about identities, especially identities involving binomial sums and hypergeometric identities, and ways to prove them using computer programs. The entire text may be...

The Mathematical Association of America (MAA) has developed the Loci site to bring high-quality instructional materials to math educators everywhere. One of their more recent offerings is this article by Michael Grady of...

Optimization has roots in operations research, and this collection of tutorials from IFORS Educational Research Committee covers many topics within OR. A fun applet requires the user to place as many queens on a chess...

The Mathematical Association of America's online Digital Classroom site offers no faint praise for this interactive set of tools, noting that "it is exciting, fast, and fully object-oriented". This is all true, and...