Stephen Downes points us at a nice timeline of educational technology, on the Edudemic site – everything from the Horn Book to the iPad, and with the likes of the stereoscope, the scantron, the CD-Rom drive and the iClicker in between!
The text relating to the ‘school slate’ reads:
Used throughout the 19th century in nearly all classrooms….
19th century? I learned to form my letters on a slate when I was in Primary 1 in central Scotland in 1962…….