What It Is: A glossary of math terms for grades six through twelve.
Who's In Charge: Textbook publisher McGraw-Hill.
Why It's Worth Checking Out: Well, goodness, I'm not the only addle-brained adult trying to help a learning-challenged older kid with math homework, am I? All those terms have ditched out of my brain since my old school days, to be replaced by song lyrics and lines of dialog from TV shows. If you're also caught having to explain math concepts, desperately scouring textbooks and the Web to find definitions, this site from McGraw-Hill can be a sweet cheat sheet. Pick a grade, pick an alphabet letter, and you'll find short and comprehensible explanations of those long-lost terms.
Where to Start: Select a grade.
+ Another Helpful Site: While we're at it, this interactive periodic table was a life-saver when I was dragging my son through biology homework the other night. My elderly eyes particularly enjoyed the way mousing over a small box blew it up big enough for me to see. +