Virtual manipulatives

Details Virtual manipulatives Virtual manipulatives

1999-03-29

2003-02-11

Sax, Steven (Department: 2174)

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

C345S215000

Reexamination Certificate

active

06518988

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to virtual manipulatives that can be used for a variety of different purposes, including as instructional tools, e.g., in mathematics, and as design and engineering tools. It also relates to instructional systems for creating activities associated with virtual manipulatives and disseminating these activities, e.g., via the World Wide, electronic networks, and CD-ROM and similar storage devices.


REFERENCES:
patent: 5469538 (1995-11-01), Razdow
patent: 6029156 (2000-02-01), Lannert et al.
patent: 6032141 (2000-02-01), O'Connor et al.
patent: 6101489 (2000-08-01), Lannert et al.
patent: 6125358 (2000-09-01), Hubbell et al.
patent: 6201948 (2001-03-01), Cook et al.
patent: 6278450 (2001-08-01), Arwri et al.

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