INTERACTIVES 3D Geometry Lesson
In these lessons, you'll learn about some of the 3 D objects in our world. You'll learn some of the terminology used to describe them, how to calculate their surface area and volume, as well as a lot about their mathematical properties.
"Each animation is embedded in a web page that elaborates on what you will see, but some web-browsers may not like those embeddings; for that reason I've provided direct links to each of those embedded animations on the web page in which it's supposed to appear. If clicking on a link from this page opens a page that fails to display a movie, click on the link to that movie."