One of these calculators is probably one of the most useful things you can have in high school, especially if you are taking classes such as algebra 2, geometry, physics, pre-calculus, or calculus. No matter what you will always find yourself using one of these calculators in high school, they are very powerful calculators that have a great advantage over a standard calculator because it has the ability to have programs on it and because it is a graphing calculator. These calculators can even be used during tests such as the SAT! It gives you a better advantage if you know how to use one of these well. The only downside to these calculators is that they require 4 AAA batteries, they last a pretty long time though because the screen doesn't take up much power. Some people might complain that the screen is too low resolution to today's standards or that it isn't a backlit screen,  but this screen is what allows for greater battery use, you wouldn't want your calculator to power off during an exam. So although this calculator is from 1999 it is still a good calculator that you won't regret getting.