The Inka Quipu: Positional Notation on a Knotted Cord

  • The Inka Quipu: Positional Notation on a Knotted Cord

    Claudia Zaslavsky; Bianka Crespo
    Exploration of the Inka data recording system of knotted cords called quipus reinforces students' understanding of place value. Activity sheets included.
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