This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

Contains plans for five lessons that ask middle schoolers to write newspaper articles predicting how copyright law will adapt to new technologies in the future. They will do this after reviewing instances of this in the past. In addition...

How did the American Revolution reflect a change in American society? Read about how political participation increased across the classes, and see how the question of slavery and women's rights became a thorn in the side of those...

Describes the world of Renaissance England. Discusses how that world is reflected in the works of William Shakespeare. Includes interesting information on how the English language became stabilized due to the printing press. Highlights...

After students have learned the basic relationship of Snell's Law, they practice applying it to a situation. Then they are given another situation where it doesn't work, which turns out to be one in which total internal reflection occurs.

Cyber Law Journal, a weekly publication of the New York Times, reflects on the legal issues raised by the Internet.

In this illustrated physics tutorial, students investigate the connection between light reflection and light refraction.

Defines the refraction of light and provides an applet for investigating it.

Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows.

This unit helps students learn to apply the concept of solar energy conservation. They are introduced to angles and their effect on the amount of light reflected, and they will also design, construct, manipulate, critique, evaluate and...

An investigation into the total internal reflection of light, using a laser pointer. Accompanied by an explanation of what's happening, a discussion of Snell's Law, and links to additional information.

A physics tutorial on designing an auditorium and solving the problem of sound reflection. Illustrated.

This page and the many pages which are indexed to focus on the behaviors of sound which characterize it as a wave. Reflection, refraction, interference, diffraction and more are clearly illustrated and explained.

The 1980s battle over safety belt laws reflected widespread ambivalence over the role and value of government regulation. Drivers and passengers complained that seat belts were uncomfortable and restrictive, but the uproar over mandatory...

Investigate synthetic chemicals that may be found in one's environment, and consider how toxic synthetic chemicals may affect people differently. Reflect on alternatives to toxic home-use products, and evaluate the risks and benefits.

This collection of documents, broadsides, pamphlets, books and magazines reflects the progress if the Zapatistas to get the government to pass into law a negotiated agreement safeguarding their lands and culture.

Being able to own land and having land availble to own brought about great change in the new American nation. Read about how this came about and why it reflected new republican ideals. See what other changes were reflected in new state...

See how Earth's temperature would change if the Sun's brightness increased or dimmed or if Earth's albedo was different.

Read about the mood of the United States people in 1980, and see how Ronald Reagan's agenda reflected that mood.

A collection of primary source materials that reflect the Jim Crow laws in the United States. Includes analysis tools and teacher guides.

Congress is made up of a group of people who work together to improve the quality of lives of citizens throughout the nation. Long ago Congress decided that it was important to pass labor laws to protect children. Why did they think that...

This resource provides a definition of RTI, reviews essential RTI components, and responds to frequently asked questions. This document lays out four essential components of RTI: a school-wide, multi-level instructional and behavioral...

Here is a general description of the gradual change from using indentured servants to recognizing Africans as slaves and the laws reflecting this change.

The principle of total internal reflection is discussed in this article. The appearance of objects from inside the water of a swimming pool is compared to the path of light in a fiber optic cable.