TI-83/TI-84 Video Tutorials
Tutorials on how to find and perform different functions on the TI-83 & TI-84 grahing calculators is available online.
HERE is a link to the Texas Instruments website. Scroll down to the TI-83/TI-84 section. Choose the HOONUIT link (pictured below) for access to a series of video tutorials - from basic key strokes to embedded menus available on the calculator.