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The National Library of Virtual Manipulatives (NLVM) is an NSF supported project that began in 1999 to develop a library of uniquely interactive, web-based virtual manipulatives or concept tutorials, mostly in the form of Java applets, for mathematics instruction (K-12 emphasis).

A small but growing collection of manipulatives for teaching and learning.

12/3/08 - Great for introducing abstract art and for teaching control principles or image manipulation in ICT.

20/1/08 - Make your own flag or manipulate (resize and rotate components) existing ones. Useful for symmetry.