The Physics Classroom: Reflection and the Ray Model of Light
Reflection and  images produced by plane mirrors, concave and convex mirrors.

The Physics Classroom: Refraction and the Ray Model of Light
Snell's law and refraction, images prouced by lenses.

MITE: Light and Optics
Complete lesson with animations and problems:
- Mirrors
- Lenses

The Physics Zone: Lessons on Optics

Physics Study Guide:
Light
Geometric Optics

HyperPhysics: Light and Vision

U. of Boston: Total Internal Reflection, Lenses
Lecture Notes

Eastern Illinois: Mirrors and Lenses
Lecture Notes

Mainland Review Sessions:
Reflection and Mirrors
Refraction and Lenses