TI Graphing Calculators are powerful handheld computers. You can use them to solve problems that come up when studying chemistry. To effectively use your calculator, you should know something about how it works - I hope you kept your instruction manual. You also need to understand the chemistry problem you are trying to solve. Since there several different TI calculators and all of them have slightly different capabilities, a different set of instructions is needed for each different calculator. Below you can choose your calculator and then look at descriptions of useful strategies written for your particular calculator