The book is designed to improve your critical thinking skills. The skills are a complex weave of abilities that help you get someone's point, generate reasons for your own point, evaluate the reasons given by others, decide what to do or what not to d . . .

We just observed how a convex lens bundles the light rays from the sun into a single bright spot. This means that a convex lens refracts light in a very special way, as this graphic will illustrate. It shows a lens from the side, and light rays coming . . .

This is a collection of three animations describing the microscope and its history, detailing how it is setup and how a microscope is put together.

In this interactive animation, you can rotate a laser beam and change the angle at which it hits a plane mirror. Move the laser around and observe what happens: as you change the direction of the incoming (or incident) beam, the direction of the refle . . .

In this online learning tool, you can study how light rays are reflected from different types of mirrors: plane mirrors, spherical concave mirrors, and spherical convex mirrors. You will also learn how images are formed by mirrors, and what type of mi . . .

This AIM resource is an exemplar tutorial on how to create accessible online tutorials. Utilizing Adobe Connect, this AIM offers a behind the scenes tour on how to create online tutorials while adhering to common accessibility practices. Essentially, . . .

We have seen in the last video how we can shift the focal point if we add a second lens to the original convex lens that is the model for our eye. This interactive animation lets you explore how to correct the vision problems of near sightedness and f . . .

This is a "drop and drag" activity that lets you discover the organization of the periodic table and observe periodic table trends.

This is an audio file detailing how light rays get kinks. The audio is as follows: "Have you ever observed what happens when you stick a pencil in a glass of water, and then look at it from different directions? This picture shows you that the pencil . . .