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Interactive math calculators, activities, and classroom tools in one place.
Open educational resources & free learning platformsGeoGebra provides free digital math tools for graphing, geometry, 3D visualization, scientific calculation, notes, and classroom activities. The site also hosts curated math resources for grades 4–12, live lesson participation, teacher collaboration features, and a photo-based math solver with explanations.
0 votesVisit siteSpaced-repetition flashcards for everything from facts to huge decks.
Open educational resources & free learning platformsAnki is an open-source flashcard app built around spaced repetition, scheduling reviews based on how well you remember each card. It supports rich card content, syncing through AnkiWeb, custom review settings, shared decks, and add-ons for extending the app beyond basic flashcards.
0 votesVisit siteFree interactive lessons and practice for school subjects and test prep.
Open educational resources & free learning platformsKhan Academy is a nonprofit learning platform with instructional videos, articles, and practice exercises across math, science, computing, economics, humanities, and test preparation. Learners can work through courses at their own pace, while teachers and parents can assign material and monitor progress.
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