Students independently investigate the Pythagorean Theorem. They are given a set of triangles that involve whole number Pythagorean Triples. The main focus of the lesson is exploration rather than discovering the Pythagorean Theorem.

Students explore why some professions have been gender-dominant in the past. In this instructional activity, students identify some professions that have typically had one specific gender employed in the past, then research that job to...

Students label images seen on an interactive website. In this early writing activity, students do their best to write the name of the object seen on the screen.

This Web quest from the PBS series "Evolution" will help you investigate a variety of types of evidence for evolution.

Information, advice, and resources on every aspect of starting and running a web-based business.

This article explains the part of a URL (Web address) called the "domain name," and the meaning of domain name suffixes, such as ".com" and ".org."

This module teaches students how to source media (including images, video, and audio) for assignments and how to understand copyright and licensing obligations so that they can ethically reuse media. After completing this module, they...

BuildWebSite4u.com offers an overview, advice, tools, and many other useful resources for building a website.

There are many different types of communication technology. They all have different strengths. It is important to think about which type of communication is best for each occasion. Learn about five different methods of online...

This Evolution Web feature explores how evidence can support a variety of hypotheses surrounding the mystery behind the extinction of the dinosaurs.

Dive in and explore what makes this beautiful world so fragile. In this Web feature, from the PBS series "Evolution," discover how coevolution has shaped the ecological relationships among reef creatures.

In this Web-exclusive interview for FRONTLINE, Jane Elliott discusses her abiding sense that her lesson on bigotry is as necessary today as it was in 1968.

A listing of various tips that can be used with Microsoft Internet Explorer. Find out ways to work better and more efficiently with this web browser.

Here you can get a technical but accessbile overview of the Internet. Learn about Internet addresses, networking infrastructure, Internet routing hierarchy, domain names, Internet protocols, and so on. Illustrated.

See models of different types of context clues, and practice finding meanings of words in context.

The Internet Law Library features extensive summaries of court decisions shaping the law of the Web up to 2008. Issues include: intellectual property issues including copyright and trademark; jurisdiction; linking; framing; meta tags;...

A brief history of the internet, written by those who were involved in the development evolution of the Internet. This history revolves around four distinct aspects: the technological evolution, operations and management aspect of a...

This video segment from WILD TV features a family that rescues and releases squirrels to their natural habitat. [4:44]

Travel deep into the human body to see exactly where your DNA resides. From the NOVA: Cracking the Code of Life Web site.

Learn the pros and cons of genetically modified (GM) crops, and cast your vote on whether they should be grown. From the FRONTLINE/NOVA: Harvest of Fear Web site.