Timeline History of Numbers working model



TL-023 Timeline History of Numbers: This full color timeline tracks the development of Algebra and Geometry through the ages beginning at 30,000 B.C. until the development of modern day mathematics. The content is the same as TL-023 but this set includes: Two Timelines (control with text and pictures, mute with lines and background), Movable Pieces printed on transparent material, Labels.

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