HEATKEYS

English obscure words and etymology resources: online dictionary of weird and unusual words, word lists, technical vocabulary aids, lipograms, and word related essays

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.

The Free Online English Dictionary from Macmillan Publishers.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Enchanted Learning Software creates children

Find opposite or similar words at WordHippo.com.

ESLgold provides hundreds of pages of free English teaching materials for ESL students and teachers. All resources are organized by skill and level for quick and easy access.

The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

HelpingWithMath.com provides free, printable resources for parents who want to help their children with math. There are worksheets, tables, charts, number lines, games, and more.

Learning Mandarin Chinese has never been more important! You can enjoy business and travel opportunities with basic Mandarin Chinese language skills. Get started with Mandarin Chinese conversation, reading and writing with your About Guide to the Man...

The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Despite being the work of one man, Salman Khan, this 1600+ video library is the most-used educational video resource as measure...

Math test activities for students and teachers of all grade levels