For some of you, this toy actually brings back bad memories.
How many trips did you take to Grandma's, with nothing more than
the Little Professor to keep you company on the trip (this was before the days of
Iphone or portable Nintendo).
The Little Professor, first
released by Texas Instruments in 1976, was essentially the first
electronic, educational toy to hit the market. It would
give the user three chances to solve a math expression, and then
display EEE if they got the answer wrong three times.
After every 10 problems, it would display how many first try
correct answers were given for the set. The Little
Professor is highly collectible these days.