Texas Instruments Little Professor Teaching Calculator

Introduced in mid-1976, the Little Professor is a non-printing electronic calculator modified to present simple arithmetic problems. A correct answer prompts another problem on the eight-digit display. An error delivers the message, "EEE." The colorful keyboard shows a professor with whiskers and glasses. The red light-emitting diode screen, in combination with the top of the instrument, looks like a mortar board.
This example has buttons that allow one to set the level of problems, as well as an on/off button on the front rather than the side of the machine. These features were introduced in a version of the machine made from 1978 onward.
P. A. Kidwell, A. Ackerberg-Hastings, and D. L. Roberts, Tools of American Mathematics Teaching, Baltimore: Johns Hopkins University Press, 2008, pp. 261–262.
Currently not on view
Object Name
electronic calculator
date made
ca 1978
Texas Instruments
Physical Description
plastic (overall material)
overall: 1 in x 3 1/2 in x 5 in; 2.54 cm x 8.89 cm x 12.7 cm
ID Number
accession number
catalog number
See more items in
Medicine and Science: Computers
Learning Arithmetic
Science & Mathematics
Arithmetic Teaching
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of John B. Priser

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