Powerpoints are available for:

Beginning Algebra

Intermediate Algebra

College Algebra

Trigonometry

Survery of Calculus (Business Calculus)
Videos are prerequisite videos for College Algebra.
TI Calc is a series of PowerPoints that will lead you through key TI83 and TI84 concepts needed for algebra and beyond.
Sketchpad refers to the geometry discovery software called Geometer's Sketchpad. Several topics are presented on various levels. You must have Geometer's Sketchpad software to view them.