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Please share examples of contexts where TI-89 is cheating

BobbyJo 1y ago
A times table test like we all took in grade school. A test applying Newton's method. Any test where the calculator can do the work instead of you, and a TI-89 can do quite a bit of work.
- gpm 1y ago
  And more trivially/procedurally, the numerous tests I had to take in high school and university which explicitly said "no graphing calculators" (and the occasional test that said "no calculators" outright).
- goopypoop 1y ago
  Thanks I was thinking of exams rather than day to day learning of basics, seeing tests as teaching rather than assessing. Point being you can't cheat at learning. The calculator can't fake that you understand e.g. how to differentiate. The working is the bulk of available exam marks but the calculator only gives answers. Is it unambiguous cheating if it doesn't help?
  - dagw 1y ago
    The working is the bulk of available exam marks but the calculator only gives answers Knowing what the answer is supposed to be makes it much easier to reverse engineer the workings, and it lets you double check that your workings are correct. Also many of the more advanced graphing calculators (don't know the TI-89 specifically) have build in CAS systems and can do symbolic differentiation and as such help with showing your workings as well. Plus the fact that these calculators let you store arbitrary data, so you can have your entire textbook stored in memory if you wanted.
    - goopypoop 1y ago
      Good points, thanks. I want to say something like "who learns advanced calculator functions solo but not the taught subject?" but of course shortcuts-by-rote spread like lice. I suppose that's the thrust of the problem with AI in schools
deleted 1y ago
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priceofmemory 1y ago
My Calc 1 class forbade all calculators. Grades were also completely based on quizes and exams. Homework assignments were all optional and un-graded.
baobun 1y ago
From memory it (and the 83/84) was banned from all math and physics exams during first year or two of our uni. There was a list of approved less powerful models. Nothing that could store programs.

A times table test like we all took in grade school. A test applying Newton's method. Any test where the calculator can do the work instead of you, and a TI-89 can do quite a bit of work.

gpm 1y ago
And more trivially/procedurally, the numerous tests I had to take in high school and university which explicitly said "no graphing calculators" (and the occasional test that said "no calculators" outright).
goopypoop 1y ago
Thanks I was thinking of exams rather than day to day learning of basics, seeing tests as teaching rather than assessing. Point being you can't cheat at learning. The calculator can't fake that you understand e.g. how to differentiate. The working is the bulk of available exam marks but the calculator only gives answers. Is it unambiguous cheating if it doesn't help?
- dagw 1y ago
  The working is the bulk of available exam marks but the calculator only gives answers Knowing what the answer is supposed to be makes it much easier to reverse engineer the workings, and it lets you double check that your workings are correct. Also many of the more advanced graphing calculators (don't know the TI-89 specifically) have build in CAS systems and can do symbolic differentiation and as such help with showing your workings as well. Plus the fact that these calculators let you store arbitrary data, so you can have your entire textbook stored in memory if you wanted.
  - goopypoop 1y ago
    Good points, thanks. I want to say something like "who learns advanced calculator functions solo but not the taught subject?" but of course shortcuts-by-rote spread like lice. I suppose that's the thrust of the problem with AI in schools

deleted 1y ago

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priceofmemory 1y ago

My Calc 1 class forbade all calculators. Grades were also completely based on quizes and exams. Homework assignments were all optional and un-graded.

baobun 1y ago

From memory it (and the 83/84) was banned from all math and physics exams during first year or two of our uni. There was a list of approved less powerful models. Nothing that could store programs.