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Problem solving
Curated problem solving resources within parent & educator for curious kids and their grown-ups.
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Curated directory
2 resources · Problem solving
Math Learning Center
Free visual math apps and family activities that make number sense, fractions, geometry, and problem solving easier to explore.
5–12 · Free91
Open Middle
Challenging math problems with open-ended strategies, printable worksheets, interactive problems, and grade-level browsing.
6–18 · Free with paid options88