Arjan Singh Khalsa

US Patent:

20120141960, Jun 7, 2012

Filed:

Dec 3, 2010

Appl. No.:

12/960337

Inventors:

Arjan Khalsa - San Rafael CA, US
Edward Murphy - Novato CA, US

International Classification:

G09B 19/02

US Classification:

434188

Abstract:

In a computer-implemented educational environment, four particular features are provided, which may be used separately or in combination, to drive the instruction of a particular curriculum, e.g. the instruction of fractions. In another implementation, educators and authors may use permutations and combinations of such features to construct in a graphical user interface a progression of interactive elements which help guide a student from visual concepts to procedures, such as equations and formulas. In a particular implementation, by using these features carefully, a curriculum author may design instructional sequences that provide careful, step-by-step sequences that help students progress from understanding the visual concepts, e.g. of fractions, to mastering procedures, e.g. fractions equations.

US Patent:

54500788, Sep 12, 1995

Filed:

Oct 8, 1992

Appl. No.:

7/958246

Inventors:

Michael J. Silva - Richmond CA
Brian P. Lee - Richmond CA
Arjan S. Khalsa - Richmond CA
David C. Schmitt - Richmond CA

Assignee:

Intellitools, Inc. - Novato CA

International Classification:

H03M 1100

US Classification:

341 23

Abstract:

A computer keyboard having an output port through which scan codes are directed to a computer CPU over a cable, the keyboard of the kind having a touch activated membrane switch onto which one of a plurality of key layout overlays can be installed. Each of a plurality of different stored data tables is operable when selected to determine the particular scan code that is directed through the keyboard output port over the cable in response to a membrane switch being activated. Each overlay being coded in a way that can be read by an overlay code identification device which automatically operates in response to a coded key layout overlay being installed onto the keyboard to read the overlay code, which is then used by a data table selector to select a particular data table for use with the installed overlay.