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Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny  
A collection of Java applets that illustrate and thus help to solve or prove various math problems: Euclid's Proof of the Pythagorean Theorem; Construction problem; Disappearing Lines puzzle; Sam Loyd's fifteen; Sliders puzzle; Lucky 7 puzzle; Happy 8 puzzle; Blithe 12 puzzle; Binary Color Device; Analog gadgets; Wythoff's Nim; Changing Colors; Breaking Chocolate Bars; Calendar Magic; Squares and Circles; Diagonal Count; Flipping pancakes; Four Knights; Latin Squares; Marriage Problem; Solitaire on the Circle; Proofs Without Words; Make Your Move, Kid!  


Levels:  Elementary, Middle School (68), High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles, Web Interactive/Java 
Math Topics:  Calendars/Dates/Time, Number Sense/About Numbers, Triangles and Other Polygons 
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