The Educator® Scientific Plus

Date of introduction:  July 1997 Display technology:  LCD 
New price:  $95 Display size:  10 + 2
Size:  8.0" x 4.0" x 0.30"    
Weight:  4.8 ounces Serial No:  
Batteries:  n.a. Date of manufacture:  
AC-Adapter:   Origin of manufacture:  China
Precision:  12 Integrated circuits:  Toshiba T6M79
Memories:  3    
Program steps:   Courtesy of:  Joerg Woerner

The California based company Stokes Publishing Company, Inc. distributes under the label "The Educator®" calculators optimized for teaching purposes. William T. Stokes filed already July 30, 1991 the US Patent Application U.S. Pat. No. 5,035,502 with the title "Transparent calculator for overhead projection".

Both the keyboard and the display are made from translucent glass and plastics. Using a simple overhead projector the teacher could demonstrate easily the function of a calculator.

The TI-30Xa SE introduced by Texas Instruments in the year 1995 developed itself to a very successful school calculator. The one to one replacement from Stokes Publishing Company was this Scientific Plus overhead calculator.


The design of the Scientific Plus was slightly revised in 2006, view the latest edition here

Overhead™ Calculator is a trademark of Stokes Publishing Company, Inc.


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© Joerg Woerner, November 21, 2007. No reprints without written permission.