Math Words
Mathwords: Terms and Formulas From Algebra I to Calculus
Mathwords is "an interactive math dictionary with enough math words, math terms, math formulas, pictures, diagrams, tables, and examples to satisfy your inner math geek." Written by a teacher of high school and college students,...
Other
Maths Net Interactive: Interactive Geometry: A Glossary
Click on the appropriate word to view a small graphic depicting the term, or click to the crossword puzzle version of thisinteractive glossary.
National Council of Teachers of Mathematics
Nctm: Illuminations: Interactive Geometry Dictionary: Lines in Geometry
The applets in this Interactive Geometry Dictionary (IGD) will show you how to find the area of some common shapes.
University of Georgia
University of Georgia: Inter Math: Interactive Math Dictionary
Each term of Intermath's interactive math dictionary contains a description and links to related terms, everyday examples, interactive checkpoint, more information, and challenges located in the left-hand column of the page. This...