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.
Famous quotes containing the word professor:
“All his works might well enough be embraced under the title of one of them, a good specimen brick, On Heroes, Hero-Worship, and the Heroic in History. Of this department he is the Chief Professor in the Worlds University, and even leaves Plutarch behind.”
—Henry David Thoreau (18171862)