History of Manipulatives in Math by Glenna Tabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo Using Padlet to view the time line for use and importance of math manipulatives. en-us 2020-12-30 14:34:58 UTC 2025-09-24 17:06:46 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/893180062/b62a89d2d508eb203bd3d1d8a7d99586/x_y_axis_at_teacher_table.JPG 300 BC: Counting Boards glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046560659 Babylonians]]> 2020-12-30 14:44:56 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046560659 1200: Abacus glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046561927 Exact origin unknown]]> 2020-12-30 14:46:41 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046561927 1400: Quipu/Knotted Strings glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046563750 Incas]]> 2020-12-30 14:49:09 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046563750 1837: Froebel's Maneuverable Gifts glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046566104 Freidrich Froebel]]> 2020-12-30 14:52:08 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046566104 1906: Independent Discovery glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046568398 Maria Montessori]]> 2020-12-30 14:55:03 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046568398 1920: National Council of Teachers of Mathematics Founded glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046570966 2020-12-30 14:58:33 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046570966 1950s-1970s: New Math & Open Education Movement glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046572703 2020-12-30 15:00:50 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046572703 1980: A Nation at Risk Report glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046573773 2020-12-30 15:02:18 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046573773 1989:NCTM Standards Published glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046575326 Called for the use of manipulatives]]> 2020-12-30 15:04:05 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046575326 2002: Virtual Math Manipulatives Defined19 glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046577208 Patricia Moyer]]> 2020-12-30 15:06:33 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046577208 2017: CPA to CPVA glennatabor https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046583695 Enrique Ortiz, University of Central Florida]]> 2020-12-30 15:15:24 UTC https://padlet.com/glennatabor/vr2wedhn2vxmkofo/wish/1046583695