BrainBashers
an exciting collection of brain teasers, puzzles, riddles, games and optical illusions. With thousands of brain teasers and puzzles, over one hundred awards, BrainBashers is updated with optical illusions and games regularly and has 5 new puzzles added every other week.
Grades: K-12

Brain Games
Try any of the over 50 fun, interactive brain games and eye tricks. Take IQ tests, solve puzzles, play Mahjongg, work your way through mazes, mines, and raku, play Freecell, Golf, Klondike, Pyramid, Spider, Find the Words, and Hangman.
Grades: K-12

chessKIDS Academy
Teach your kids how to play chess with our free online chess course.
Grades: 1-12

The Critical Thinking Co.
Develop critical thinking skills with highly effective lessons in reading, writing, math, science, and history.
Grades: Preschool - 12

Teaching Tolerance
Founded in 1991 by the Southern Poverty Law Center, Teaching Tolerance provides educators with free educational materials that promote respect for differences and appreciation of diversity in the classroom and beyond.
Grades: 1-8

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