<p>I have a TI-89 (which I have had for four years), but haven't even been allowed to use it on tests. In the upcoming SAT I & Math IIc, I heard that it is allowed on the exam. I basically know how to use everything on the calculator, and was wondering if it really helps on these tests (if not the SAT I, then maybe the IIc?). Anyone know?</p>
<p>Thanks in advance.</p>
<p>It'll help on IIc if you know how to use it. Not so much SAT I math, as that is more logic/basic algebra/common sense.</p>
<p>Can we even use the TI-89 on the Math IIc exam? That calculator has so many functions... limit, derivative, integrals, it can do almost everything... btw, if you're allowed to use it, it'll only help on the IIc as Schwaby said.</p>
<p>Yes, you can use it on IIc.</p>
<p>listen to me. The Ti-89 helps on the SAT I. </p>
<p>Three things I can give you advice on: 1) Those "hard" math algebra simultaneous equation problems at the end of the section? Use your solver button. You'll get the answer in like 10 seconds. Gives you a break from thinking and get the answer quickly and accurately 2) Those X^3 or X^4 or greater powers equations wherre you hav eto solve for X (if you don't know how to or don't want to write it out) 3) confused with a certain question like if its a general trend question? Use the Y=, and look at the table, compare the values, using your own common sense to determine the answer 4) Deadlocked on measurement questions on the SAT? Like which line is longer? Tear out ap iece of the SAT pamphlet and measure each one. <---- last ditch effort.</p>
<p>Yeah, I could see how it wouldn't do much on the SAT I though. I don't necessarily have trouble with math, but when I have a time limit I tend to get nervous and screw up simple things (fogetting a negative sign, solving for the wrong variable, etc.) not things that really have to do with "math concepts," so that was why I was wondering.</p>
<p>You can go through the SAT I EASILY without a calculator at all. On my last SAT, I attempted to do so, and used the calculator to double check (just in case... you know...). I got 2 questions wrong, and they were both logic problems, not calculator problems. 760. But for your info, it was a TI-89 i used to double check. I don't really think that helps though. However, I love my TI-89. It helps tons on the AMC. E.g: prime factoring, root solving, log, etc. A major difference between 89/83 is also that 83 is strictly numerical. That is, the 89 actually keeps things in terms of its variables, be they x, y, a, bob, etc. So on the screen it may actually say "x-3" instead of -3 (if nothing is stored in x.) Needless to say, if something is stored in X, like the 83, it will actually run the calculation and give you the numerical result.</p>
<p>I wish a school in my area held the AMC tests...</p>
<p>If you want to generalize the differences between the 83 and 89 in an abstract manner, I guess there are just two main differences: the TI-89 is a computer algebra system whereas the TI-83 is a numerical calculator. (Like mentioned above). Secondly, the TI-89 uses a keyword, function, and variable name-based OS whereas the TI-83 uses an input-based OS. Stated in another words, the TI-89 can find keywords, function names, and variable names in any arbitrary input string and call the appriopriate function and variable. But the TI-83 only has a one to one correspondence between a command and a fixed function on the calculator.</p>