Turning the calculator on and off, clearing and resetting the computer, using the 2nd key, and evaluating basic expressions.

Using the del and ins functions, and using the arrow keys to access previous calculations, or to fix mistakes in what you've typed.

How to use the Store and Memory features of your TI-30X II calculator

Using the exponent features and the root features on your calculator

How to deal with fractions on your TI-30X II

Doing multiple step problems without using the memory features

Dealing with large numbers using your calculator