The National Library of Virtual Manipulatives

The National Library of Virtual Manipulatives offers virtual manipulatives (physical objects that help students visualize relationships and applications) to assist students with math instruction. The use of manipulatives provides students with a concrete representation of a concept and allows active engagement to occur.

Resource: (1999-2014). The National Library of Virtual Manipulatives. Utah State University. Retrieved from http://nlvm.usu.edu/en/nav/vlibrary.html