<p>Some people say that it's god and makes your math score go up 50 points, others say it doesn't really help. If you know firsthand, could you please share your experience? I need a new calculator and I'm thinking about going the extra mile and getting an 89 if it'll help my math score.</p>
<p>If you know how to use it, it can help with complex algebra problems. However most HS teachers are more comfortable teaching on the Ti-83 family (Ti-84 Plus is the best in that family). So unless your very good at teaching yourself by books or have very good friends / teachers who knows the Ti-89 by heart and want to share, you would most likely do better staying with a Ti-84.</p>
<p>If you don’t mind figuring how to do stuff by yourself, get the 89. It can and will help you with complex problems. Yes, it helps you solve problems faster. And if you can’t figure out how to do something, you can always ask here… I have the 89 and I know for a fact it helps me not miss one or two problems on the math portion of the SAT.</p>
<p>I would recommend getting the TI-89. Learning how to use a TI-89 is helpful in reducing the time you take on these tests. While any calculator is useful, I remember when I took the test that the TI-89 helped me to simplify fractions (yes this small function allowed me to zip through questions because the SAT seems to like only fractions which I still am not sure why) and it helps to solve certain types of problem that may involve solving and equation. Plus, the TI-89 rocks for any class in which you like to double check work. If you can’t afford this, then don’t go for it. But if you can, I would go for it as you can use it in calculus.</p>
<p>The TI-89 is definitely not necessary for the SAT because the math is so elementary that it doesn’t require the usage of such advanced calculator tools. In addition, there are different types of syntaxes for the TI-89 that are much more complicated to use than the TI-84 that is not worth doing.</p>
<p>You are allowed to use the ti-89 on the AP tests and SAt’s but not the ACT. Also, it is recommended that youuse a calculator that you are familiar with. If you can manage to learn all of the extra capabilities that the ti-89 has, then you may have a slight advantage.But a ti-83 or ti-84 would work just as well</p>
<p>i would say definitely go for a ti-89. it will take some time to get used to it, but i would say it is worth it. especially if you will be going into calculus in the near future. but yes, it just has nice functions that really can be a time saver. copy/paste, highlighting, double checking imputs, it has a scrolling history, it gives you exact (fractional) answers. and when you get to calculus, it really does help. itll only take a couple weeks of use to get the hang of it, it is pretty simple, just laid out differently than the ti-83s/84s</p>