Assist your pupils and broaden their horizons with several activities that determine the exact positioning of various communities over the globe. Pupils use data from the Global Positioning System to determine the position and rate of...

What and where is "the cloud"? The instructional activity teaches scholars about the history of cloud computing and about its current uses. It also teaches how to install a multiple guest OS in a host OS and how to use cloud computing...

Knowing the temperature coefficient allows for the calculation of voltage output at any temperature. Groups conduct an experiment to determine the effects of temperature on the power output of a solar panel. The teams alter the...

Does technology always mean advancement? Scholars take a close look at the use of voting machines. Does using a machine make voting more effective? Readers consider the advantages and disadvantages of the current voting process. They...

Where is NASA going next with their rockets? A reading provides an overview of the next generation of rockets for space exploration. A full-page diagram gives the reader a scaled perspective of what this rocket may look like, for both...

Who were the candidates in the 2008 US Presidential election and where did they stand on important issues? Use a resource that offers an opportunity to go back in time and examine candidates and issues involved in that election year.

If you're a pest, come and get a tasty meal here! Scholars work collaboratively to construct a mini restaurant out of a shoe box and create a menu that feeds a pest their favorite food. 

Magnets don't grow in fields, but magnetic fields are important to understand. The lesson covers the effect electricity has on magnetic fields. Scholars use a compass, magnets, and electrical wire to test magnetic fields and energy...

Starting off with present participles, this resource tackles the progressive with grammatical explanations, examples in English and Spanish, and an interactive practice exercise. Use the menu at the top of the webpage to navigate to each...

You can learn to graph as well as a calculator using calculus. The lesson introduces using derivatives to find critical points needed to graph polynomials. Pupils learn to find local maximums and minimums and intervals of increase...

Nearly every president has had the opportunity to name a nominee to the United States Supreme Court. But what makes someone an ideal candidate to become a Supreme Court justice? High schoolers test their prior knowledge about the...

Personal correspondence in the form of letters is not as common as it once was. This resource presents an opportunity for you to introduce your class to letter writing and cover topics in social studies. Learners read a letter written in...

How do scientists know they're right? Truth be told, they don't always know. Explore the scientific process using mystery tubes in an insightful activity. Young scientists discover how to approach and solve problems in science, how ideas...

Explains what alternating current and direct current are and what they are used for.

Direct current, defined and illustrated.

A summation of the War of the Currents featuring Nikola Tesla and Thomas Edison against a backdrop of The Columbian Exposition and an execution.

A general summary of electrical resistance including a comparison of AC and DC current.

Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.

Learners explore electrification in the 20th century. Some topics investigated are rural electrification, power generators, and direct current (DC). The resource consists of historical information, a timeline, and a personal essay by a...

Illustrated explanation of voltage, current, and resistance and the relationship between them.

Use this site to learn about the inventor of the electro-magnetic motor, Nikola Tesla. Find out why Tesla's experimentation with alternating current was so important to later inventions and use of electricity.

A comprehensive look at the history of South Africa beginning with its settlement by Zulus and progressing through apartheid to the current strong democracy. Information is from the U.S. State Dept. Background Notes.

Uganda's recent history is one of military coups and human rights abuses. Find out about the current history to see if the country shows some improvement. Information is from the U.S. State Dept. Background Notes.

Learn about core health indicators in Timor-Leste in this World Health Organization country profile which includes demographic and current health information.