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|Kevin N. Stone|
|A collection of logic, language and math puzzles, in a choice of easy/medium/hard. Rate the puzzles; show their answers. Logic puzzles include Einstein's Puzzle. Play games of strategy, such as "Four in a Row" (also known as "Connect Four") or games based on puzzles, such as "Arithmetiles." Illusions range from stereograms to virtual objects, visual distortion, shape distortion, and size distortion. Fun stuff includes the "Missing Square" triangle brainteaser, a calculator that takes your birthday and tells you the date when you turn a billion seconds old, and another one that tells you how long you have been alive in years, months, weeks, days, hours, minutes and seconds.|
|Levels:||Elementary, Middle School (6-8), High School (9-12), College|
|Resource Types:||Problems/Puzzles, Fun for Kids, Web Interactive/Java|
|Math Topics:||Number Sense/About Numbers, Logic/Foundations, Sequences and Sets|
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