A two-day lesson plan for students to learn about the anatomy of the eye and the nature of vision. Includes a variety of supplemental resources for teachers.

Instructions on how to make a lens using ice. With an explanation of what is observed, and a link to an informative article on lenses.

An experiment using a water lens that demonstrates how the eye sees an image. Accompanied by an explanation of what's happening, and a link to an article on refraction.

This tutorial looks at the anatomy of the eye and how the sense of sight works. This is the first part of a learning module. Subsequent sections cover how images are formed and detected, the concept of accommodation where the eye adjusts...

An app for investigating the operation of a refracting telescope. The location of the eyepiece and objective lens can be altered, and the focal point and path of light through the lenses can be observed.

An experiment using Jell-O to create lenses, to see how light behaves with flat, concave, and convex lens surfaces. With an explanation of what is observed, and a link to an informative article on lenses.

An experiment to invert a television image using a magnifying lens. Accompanied by an explanation of what's happening.

An investigation into how lenses behave. Students explore using convex and concave lenses in various ways and record their observations. They are then are directed to another site to try activities where they can manipulate virtual lenses.

This site provides a an excellent guide to the structure and function of the human eye. Content addresses how the eye is built, as well as how it works to translate light and shadow into sight. A diagram illustrating the various parts of...

A short biographical sketch on the life and work of Augustin Fresnel (1788-1827). Comments on a few of his scientific accomplishments.

Many articles with consumer information about lenses, eyewear, eye problems, and unique eye conditions. Vast content and many links to off-site information.

A series of pages explaining how microscopes work, the parts of a microscopes, the techniques of using a microscope, and other useful information.