Stephenson, Stephen Kent

In Tokyo in 1964 I bought a Soroban with Kojima's book "The Japanese Abacus: Its Use and Theory," an event that sparked my interest in abaci ... and in computers. After getting my M. Eng. (Elect.) degree at Cornell University, my 30 year career included working on the design and construction of nuclear power plants, missile systems software engineering, and industrial and engineering computer systems sales and systems engineering. Deciding to become a high school math teacher at the end of 2000, I took a History of Math course as part of my M.Ed. degree program at UMassLowell. I was struck by