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Originally Posted by Paradise Lost
Actually, you can't use the Ti-89 on the SAT, how do I know this, because I couldn't use my
freakin Ti-89!! Same with ACT, damn bastards.
Not sure about AP Calc test though, but if you really can use it, it probably won't help much
anyway because the problems are less calculation oriented, and more logic oriented. But
it is a great learning tool in my opinion. I've figured out so many problems because it just
doing it for me, I could see where exactly I went wrong... Good stuff...
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Uhhh, you are DEFINATELY wrong about the SAT. I used mine just recently.
Most teachers/administrators are IDIOTS though and will tell you you can't use it on the SAT/SAT II's because they mix up the ACT (which does ban 89's) and the SATs. You can definitively use it on the SAT and SAT II Math, and it will do any/all of the actual math for you.
For Calc, I found the 89 to be fairly useful. I was able to calculator rape the calculator part of the MC (there are calculator and non calculator parts to both the MC and free response parts of the test), but the 89 was of limited use on the FR portion of the test, as you have to show work to get credit.
If you do decide to get your kids an 89, know that you are effectively choosing the SAT over the ACT, because you can't use an 89 on the ACT and 83's work totally differently than 89s. Also, most teachers will teach on 83's, so if your kid isn't good with learning to use computers/calculators (the 89 is basically a computer) then I don't know if it would be a good choice.
Finally, the 89 will be able to smash pretty much any HS math test that you can use it on, and can also be used to cheat on other tests really easily (ie: notes for physics/chemistry in the calculator). 83's can also be used for cheating via note storage, FYI.