I "got back into calculators" recently (middle age is sad), rediscovering the graphical calculators of my schooling days. Maybe at the time I knew how to use it properly, but re-learning how to use it now made me appreciate the power. I did make me wonder if taught properly, or I had shown more interest how many extra marks I would have gotten in exams.
I blew a TON of lawn-mowing money on the first graphing calculator I ever saw in probably 1987. It was a Casio, and it was AWESOME at the time. I wish I still had it.
