National Library of Virtual Manipulatives - 8 views
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Ced Paine on 02 Aug 09Dozens of online math manipulatives K-12
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Affranchi . on 15 Jun 11***** "The National Library of Virtual Manipulatives (NLVM) is 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). The project includes dissemination and extensive internal and external evaluation."