This large-format compendium offers many activities as well as brief discussions of math concepts and history. Projects include creating a hopscotch game to demonstrate positive and negative numbers and comparing the ratios of objects with their shadows, though sometimes an activity's connection to mathematics seems tenuous (like making a magic wallet or a pinhole camera).
Each double-page spread focuses on a particular subject within one of the seven broad headings: numbers, proportions, algebra, statistics, measurement, shape, and thinking. The pages' bright, crisp colors are crowded with many small, white-background photos as well as experiments, projects, and sidebars. The approach may be scattershot, but some of the projects will hit the target, providing ideas that parents and teachers can use in teaching math to children.
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