Graphing Calculator Help

[DisneyFan25863]

Ok, so here is the deal:

Ever since my 8th grade year (when I took Geometry), I've used my trusty Ti-84 Plus Silver Edition graphing calculator. Now that I've finished Pre-Calculus, and am going into AP Calculus and AP Physics, I'm thinking it could be time to upgrade. I've been looking a lot at the Ti-89 Titanium Edition, which has some nice 3D graphing and algebra functions. My sister is going into Geometry next year, so I would give her my old 84.

Only problem with this is that the 89 doesn't have the same commonality with the Ti-83 that the 84 does, so I would have to translate any instructions my math teacher gives us to work on the 89. There are other people I know who use 89s, though, and they have no issues with it.

Anyone here know enough about graphing calculators to tell me if its a good idea to get the 89, or should I just keep my 84 and get my sister either an 83 or an 84?

Thanks!

[Matterhorn Fan]

I had to take calculus without a graphic calculator. I've still got my trusty TI-30 SLR+. I think I bought it in junior high.

[DisneyFan25863]

Originally Posted by Matterhorn Fan

I had to take calculus without a graphic calculator. I've still got my trusty TI-30 SLR+. I think I bought it in junior high.

Wow

A graphing calculator is required for everyone taking Algebra II/Trig and above here, and strongly encouraged for anyone taking Geometry...

[Alex]

I had one of the first generation of graphing calculators in high school. We were allowed to use them for homework but not tests or anything like that. Went through differential equations in college without ever using one.

[DisneyFan25863]

Originally Posted by Alex Stroup

I had one of the first generation of graphing calculators in high school. We were allowed to use them for homework but not tests or anything like that. Went through differential equations in college without ever using one.

Once again..wow. I've been using my graphing calculator for every math test since 8th grade. You had to write out all your sines and such? That must have been torture...

[wendybeth]

I'm about to start on a Newton bio- I'll let you know how he fared without one.

[DisneyFan25863]

Did you guys get to use like...slide rules or something?

*is glad to be going to school in the age of technology*

[BarTopDancer]

I have a TI-86 and i don't have a clue how to make it do anything but add, subtract, multiply and divide.

Remember DF, a whole slew of people went through Algerbra, Trig and other classes without graphing caculators being around.

Oh and in my high school math classes we wern't supposed to use anythng but a basic caculator and in college no caculators for several of the classes. Gotta learn to do it by hand first.

[DisneyFan25863]

Originally Posted by BarTopDancer

Remember DF, a whole slew of people went through Algerbra, Trig and other classes without graphing caculators being around.

Oh and in my high school math classes we wern't supposed to use anythng but a basic caculator and in college no caculators for several of the classes. Gotta learn to do it by hand first.

Yeah...I guess its just hard to imagine having to do every single problem without a calculator. I know how to do everything I can do on my calculator by hand, but I have no idea how I would ever finish a math test in time without one.

[Prudence]

I honestly wish I knew how to use a slide rule.