Little Professor
Encyclopedia
The Little Professor is a backwards calculator
designed for children ages 5 to 9. Instead of providing the answer to a mathematical expression entered by the user, it generates unsolved expressions and prompts the user for the answer.
screen. The user has three chances to enter the correct number. If the answer is incorrect, the screen displays "EEE". After the third wrong answer, the correct answer is displayed. If the answer supplied is correct, the Little Professor goes to the next equation. The Little Professor displays the number of correct first answers after each set of 10 problems.
on June 13, 1976. As the first electronic educational toy, the Little Professor is a common item on calculator collectors' lists.
In 1976, the Little Professor cost less than $20. More than 1 million units sold in 1977.
Calculator
An electronic calculator is a small, portable, usually inexpensive electronic device used to perform the basic operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators.The first solid-state electronic...
designed for children ages 5 to 9. Instead of providing the answer to a mathematical expression entered by the user, it generates unsolved expressions and prompts the user for the answer.
Usage
When the user turns the Little Professor on and selects a difficulty level, an incomplete equation such as "3 x 6 =" appears on the LEDLEd
LEd is a TeX/LaTeX editing software working under Microsoft Windows. It is a freeware product....
screen. The user has three chances to enter the correct number. If the answer is incorrect, the screen displays "EEE". After the third wrong answer, the correct answer is displayed. If the answer supplied is correct, the Little Professor goes to the next equation. The Little Professor displays the number of correct first answers after each set of 10 problems.
History
The Little Professor was first released by Texas InstrumentsTexas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
on June 13, 1976. As the first electronic educational toy, the Little Professor is a common item on calculator collectors' lists.
In 1976, the Little Professor cost less than $20. More than 1 million units sold in 1977.