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(I couldn't afford to replace it, so I learned how to graph things in Excel, or in my head.) It's a hardware thing - when the LCD screen is subject to enough stress, the liquid cells break and the fluid covers the screen (still behind the clear bezel.

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The Blue Screen of Death on TI calculators is not a software or firmware thing. I agreed, dropped my pack where i stood, and jumped back in my car.

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As I shouldered my backpack and started to walk away, another driver asked if I could straighten out so he could use the adjacent space. My 1970 Impala, besides not fitting in with all the rich kids' parents' BMW M3s, also took up more than its share of a parking space. How I found out about this: A few days after I plunked down my $100, I parked crooked.

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Did you know that TI graphing calculators are subject to a Blue Screen of Death, completely different from the cause in Windows computers? Posted by peacheater at 8:08 AM on NovemĪs an engineering freshman in college, they required that we buy these. I did think that it gave you a 'feel' for the numbers and the ways in which they could work with each other. A too-tedious calculation was generally a sign that you were down the wrong path - because teachers liked 'elegant' problems and solutions too. It incentivized both students and teachers in favor of more 'elegant' calculations - there was a lot of value in breaking down a math problem into an easy calculation, so it forced you to look for ways to simplify and cancel things out and make clever substitutions. The teachers understood why this was a pain in lab classes and generally turned a blind eye too.īut they were pretty ruthless about no calculators in our regular classes as well as exams, and it did make a difference in the way we approached calculations. I grumbled about this a ton in school, as did my classmates, and we certainly snuck them into lab classes and the like which were heavy on computation (we had to use Clarke's tables instead of calculators - basically converting everything to logs that we needed to multiply or divide, doing the addition or subtraction of logs and then converting back - a giant pain but also something you got really quick at by the end). Anecdotally, I went to high school in India, where calculators are generally banned until college. I was a STEM major and we were explicitly forbidden from using these during exams (chemistry actually mandated a specific scientific calculator, and they would have been useless in Calc I and II, anyway.) Maybe an engineer would have gotten more use out of it, I don't know. What I find the most frustrating about their use is the first argument that eviemath makes: you never use these things again after high school. I miss playing Pac-Man and Mario on that thing, though. I found my old one the other day, and I'm thinking of donating it to the homework club I volunteer at. I was surprised to see that my community college students still carry TI-83+ and TI-84 calculators, and that the models haven't changed at all. I'm an indirect victim of that: I switched high schools and had to re-do grade 11 math at the new one, because the first school didn't use graphing calculators in the course.

It doesn't surprise me at all that TI has a strong lobbying component. Rumour had it my high school math teacher worked for Texas Instruments somehow, which was why he would be absent for one or two weeks at a time during the school year. But overall, significant/universal calculator use isn't even necessarily good pedagogy. And there's the caveat that a small amount of pedagogically-appropriate calculator use may be helpful. (Not necessarily from a 'kids these days can't do basic calculations' argument - there is the student algebra skills issue, yes, but significant calculator use also seems to be correlated with a focus in high school math classes on performing computations over conceptual understanding, with students whose high school math courses use calculators more heavily demonstrating a bit less understanding of calculus concepts and thus less flexibility or adaptability as they get to higher levels of calculus/mathematics.) I'm not familiar with the research for algebra/trigonometry, so that may be different.

You can get programs now that lock a student's computer to only be able to use specific programs during class/tests, too.Ī larger issue is that data show that significant reliance on calculators in high school pre-calculus or calculus classes is negatively correlated with student success at calculus. For university calculus, Maple or Mathematica are more standard, but Desmos (mentioned in the article) is great for basic calculus tasks and everything up to calculus. in university classes we tend to use computer software instead. And students often don't use these calculators any time after high school.

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