*sighs*

<p>I recently bought a TI 89 Titanium Graphing Calculator from Circuit City and i still haven't opened it because of a few things i have been wondering about. A lot of ccers say that some teachers (like ap calc teachers for example) don't allow this powerful calculator in class.. My junior year hasn't started yet but i am taking hon physics and trig/analytic geometry and hopefully ap calc senior year. Will i be able to use this calculator in class too? Many of you will reply to this question by advising me to ask my teachers.. but I cant do that since my vacation has not finished. ONce i open the packet I can't return it..</p>

<p>I was hoping that by buying a 150 dollar calculator, i wouldnt have to buy another calculator for life. Also, if my calculus teacher does not allow it does it mean i just wasted 150 bucks, or will she provide a graphing calc for me if i need one for classtime? Do your calc teachers have an extra set of graphing calculators? If that is common, i dont mind keeping this one and just using the teachers during senior year as long as i can use this calc on all the other tests like the sat and subject tests.</p>

<p>Please give some advice if you can. I still have not opened it so i can still hopefully return it. !!!!</p>

<p>Doesn't your school have a site with faculty contact info or something? At my school most math/science teachers have a few extra graphing calculators, we can also check them out for free like we do with textbooks though I don't know how many other schools do that.</p>

<p>I had a TI83+ with which I programmed in things like the quadratic formula etc., so treating them different based on their "power" I think is a bit silly. At my school teachers are fine with any of the TIs but obviously I can't speak for yours.</p>

<p>Everything you're asking about depends on your teacher. I had a teacher that didn't have a class set so if you didn't bring your calculator (or you brought one that you couldn't use) you were screwed. Last year I had a teacher who was nice enough to purchase a few extras on his own, so if you forgot yours you could borrow his. But if you made a habit of it, he wouldn't like it.</p>

<p>Really, it depends on your teachers. Like Daniel said, just email them and see what they say. Or why not just wait until the school year starts? Make sure you ask all your math, chem, and physics teachers for the next two years if possible.</p>

<p>It depends on your teacher. I know for a fact though that you can't use it on standardized tests.</p>

<p>The TI 89 IS allowed on the Calculus AP Test. I believe it is also allowed on the SAT, but you'd have to find that information out on your own. If it were me, I would keep the calculator, as far as calculators go, that's as good as it gets, and since most tests don't have a problem with it, I would go ahead and use it.</p>

<p>TI89 is allowed on SATs and all SAT subject tests that allow calculators. The only standardized test it is not allowed on is the ACT.</p>

<p>Well, I don't see why you can't just ask on the first day of school. There will probably be time for questions and answers and you can get a definite reply on the subject, then open it afterwards.</p>