
A calculaltor to meet your needs in math. Everything from prime number finder, common factors, finding area, fractions....

Can you name the 5 Platonic solids? The 5th one is the icosahedron, it's bounded by 20 equilateral triangles. And, with that piece of information, you should be able to state how many vertices, edges and faces it has. Now, what are the other four?
Do you have a math student to buy for? If so, Texas Instruments for most is the preferred choice. Make an informed choice by reading over the top 10 questions that parents ask about graphing calculators. You'll also want to read over the course to calculator comparison chart to ensure that you purchase the right calculator. Once you make the purchase, be sure to download the free tutorials found here. As for my own personal preference, the TI 83/84 calculators are my favorites! The TI 84 Plus Guide for Dummies isn't a bad starter resource either.
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