In this 7.5 minute video educator Ian Byrd proposes three pencil and paper math games that are simple to learn and that develop students' ability to abstract their strategies. Game of 100 and Heaps, both Nim-type games, also develop facility in adding and subtracting whole numbers, while Cram strengthens spatial reasoning. All three games can be adapted, encouraging students to generalize their strategies into algorithms. Byrd includes links to Wikipedia articles on the games.
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