Mathigon

Some math sites feel like digital worksheets; Mathigon feels more like an interactive museum. This beautifully designed online platform offers explorable math textbooks, games, and its standout Polypad virtual manipulatives, covering topics from basic arithmetic to advanced concepts. Developed by a small team of mathematicians, designers, and developers, Mathigon emphasizes discovery: students drag, build, and experiment to see patterns rather than just reading explanations. Parents appreciate that many resources are completely free and that the visual, playful approach can win over kids who think they “hate math.” It works best as a supplement or enrichment layer alongside a more structured curriculum, since it doesn’t prescribe a single path. For value, it’s hard to beat: all you need is a browser and internet connection, making this one of our favorite no-cost additions to a digital toolbox.