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The game of sim is an easy-to-learn pencil and paper game of drawing lines and avoiding triangles. Unlike many other similar pencil and paper games, there is always a winner!

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The Impossible Domino Tower Puzzle asks, “Can you arrange 16 dominoes to build this seemingly impossible domino tower?” This domino puzzle might look familiar because I tackled a similar puzzle, the Impossible Domino Bridge, with my students back in September. My students loved the challenge of building with dominoes. So when I saw that Ivan …

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