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Ti-84 Evo

education.ti.com

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Re: Ti-84 Evo

#231

Post by hypercube33 »

quacker wrote: post #176
kristopolous wrote: post #62

Show me a highschool math problem you can't do on a $12 Casio scientific like the classic FX-300MS https://www.usaofficemachines.com/csofx300ms-fx-300ms-scient... There's even knockoffs of it for $1: https://www.aliexpress.us/item/3256809744184708.html I picked one up when the 99 cent store was shutting down. It works fine. Look what you can get for $20: https://www.casio.com/intl/scientific-calculators/product.FX...…

Well, the TI-83/84 are called a graphing calculators for a reason: you can plot equations and datasets with them and look at them right there[1]. Looking at graphs is huge for learning, or at least it was for me, and school isn't just about plugging things in and getting an answer (or shouldn't be, at least). Doesn't mean it's not overpriced, but that's one reason and you can get a used TI-83/84 for like $30 or less.…

I mean a laptop running windows can use the old power toy calculator or something like speed crunch to do graphing and I'm sure Linux has countless others, with Chromebooks probably having more for free online as well, I can only assume.

Re: Ti-84 Evo

#232

Post by eagerpace »

IIAOPSW wrote: post #137
vvpan wrote: post #38

We had to buy those calculators for highschool and it was a waste of money, felt like somebody must be paying somebody off to have thousands of students buy a device that they will certainly never have to use (and is of little educational value).

I learned programming on that calculator. I learned programming because of that calculator. I owe so much to that calculator.

Same. I hid custom calculators behind game levels so my teacher couldn't find them.

Re: Ti-84 Evo

#233

Post by NewsaHackO »

vkou wrote: post #224
rogerrogerr wrote: post #64

Earlier quoted context omitted.

The contrived ones where they make you graph stuff, but that’s about it.

There is no graphing problem that you'll be asked to solve before university that can't be plotted to a 'good enough for high school' level by hand in seconds . Four data points is sufficient to give you a 'good enough' shape and position of a second-degree polynomial. Five or six for a third-degree one. (And you barely see them, and don't learn how to algebraically solve for their roots in high school anyways, becau…

This is nonsense. Kids are not expected to look at polynomial equations and be able to deduce the shape of the graph without a graphing calculator. Besides, it is expected that a student can use a graphing calculator to be able to numerically solve for a root of arbitrary polynomial equation.

Re: Ti-84 Evo

#234

Post by Philpax »

59percentmore wrote: post #178
ziofill wrote: post #153

About 25 years ago my parents got me a Ti84 as a surprise for Christmas and they hid it in the attic so I couldn't find it in the meantime. A few months went by and a couple days before Christmas, when it was time to wrap the presents they couldn't find it anymore. My dad went out and got a Casio something as a late minute replacement, and that was the calculator I used in high school and I never knew about this stor…

Must have been closer to 20 years, 84(+) didn't come out until 2004. Gonna be pedantic/crotchety about this because I got into advanced math classes but it was my brother who got the 84+ (I had to settle for a 83+). Guess who's the engineer now, and who's the NEET? Your kids pay attention to what (who) you value, folks.

weird grudge to keep for twenty years, man

Re: Ti-84 Evo

#235

Post by dwa3592 »

I don't get it. Who is buying these calculators nowadays? It's expensive and any plot it can generate is 1 prompt away from the AI that students are already using. Also why is there a calculator license? what even is that?

Re: Ti-84 Evo

#236

Post by beeandapenguin »

joebates wrote: post #102
pavel_lishin wrote: post #40

Earlier quoted context omitted.

I certainly got a lot of educational value out of mine. I managed to program a fully functional Minesweeper game on mine, using the built-in programming tools - no transferring efficient binaries via cable! But yes. 99% of what we did with them in class - when we were even allowed to use them - could have been handled by a little solar-powered calculator with basic arithmetic functions.

Programming mine in high school is how I ended up coding for the first time and led to my current career. Honestly a pretty good investment (from my parents) I'd say.

Same for me, it was also my first time ever seeing code, and I still remember it well. While getting ready for swim practice in a locker room, my friend challenged me to beat his score on a button mashing game he programmed earlier that day in school on his TI-84. My 12 year old self was in awe of his BASIC skills.

Re: Ti-84 Evo

#237

Post by metadat »

alfalfasprout wrote: post #8
Yossarrian22 wrote: post #6

Ti really needs to stop with the artificial product differentiation. There's no reason 15 years after the Nspire CX CAS came out that everyone of their calculators can't do CAS.

Heck, you could do a decent amount with the CAS back in the TI-89.

TI-89 is the GOAT!

Re: Ti-84 Evo

#239

Post by nextos »

kristopolous wrote: post #83
varun_ch wrote: post #69

Earlier quoted context omitted.

International Baccalaureate math has some stats questions that require a calculator that can do stats questions. Not really possible by hand in exam conditions!

The basic $12 Casio scientific has stats like mean, standard deviation, regression... Stats is a huge field, we're talking highschool level. I think it probably covers it

IB questions require at least a mid-range calculator to obtain e.g. the ccdf of chisq, t, and other distributions.

In the exam, you'd also be at a disadvantage without advanced graphing.

Re: Ti-84 Evo

#240

Post by charcircuit »

kstrauser wrote: post #218
charcircuit wrote: post #188

Earlier quoted context omitted.

You could get that same educational value from programming things on a smartphone.

What's your favorite free programming environment for commonly used smartphones?

I don't have a favorite. I do not feel like anyone that I am aware of has made proper investment to make a quality development app for mobile due to the low market demand. While development is better than on a calculator I think they are below my expectations.
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