Nikon Photography Glossary
Camera Simulator - try changing setting on the camera sim to learn about what they do
Digital Photography School
KenRockwell.com - D40 Guide
Getting to know the D3300 (First 2 videos)
Nikon D3000 tutorial - sections for Release Modes & P, S, A and M modes (use headphones)
Adorama Learning Center (search for concepts in the 'search ALC' box)
If assignment is not completed in class it becomes homework due the beginning of next class.