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In 1993 I bought an HP48 for high school trig and calc. The TI-81 was pretty pathetic, and I think it didn't do calculus. The other HP user in my school didn'
by kw71 11y ago
In 1993 I bought an HP48 for high school trig and calc. The TI-81 was pretty pathetic, and I think it didn't do calculus. The other HP user in my school didn't know the difference and probably didn't care - her engineer dad bought her a 48. Neither of us had any problems keeping up. While our textbooks didn't feature the TI, the instructors did, with a special version that was usable with an overhead projector.
I still have my HP48 on my desk and use it every day. I wonder how many of the other kids even care about the devices they had in high school.
- jacobolus 11y agoI used a Casio FX250 scientific calculator, which I purchased for about $5 on sale in 1998, all the way from middle school through college, including not only high school calculus class, but also a large number of college math, science, computer science, economics, etc. courses. For anything it couldn’t handle, a PC running Maple or Python was a much better tool than any pocket graphing calculator could ever hope to be. Insisting students (or their parents) shell our $100 for graphing calculators is a scam, and spending class time teaching students to punch formulae into TI calculators is an immense distraction from learning mathematics.