1962's Cuban Missile Crisis was not the only time the Cold War between the United States and the Soviet Union almost went hot. Read this article to learn about the five cold war close calls.

Find absolute minimum/maximum points of continuous functions over closed intervals.

Practice identifying the direction of current flow, closed circuits, and open circuits with this multiple choice quiz.

This site, geared toward English as a Second Language students, provides "A Life-Saving Cow" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed questions,...

This site, geared toward English as a Second Language students, provides "Driver Loses Mabel, Finds Jail" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed...

This site, geared toward English as a Second Language students, provides a continuation of "Water Under the Sink" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords,...

This site, geared toward English as a Second Language students, provides "A Festival of Books" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed questions,...

This site, geared toward English as a Second Language students, provides "Crazy Housing Prices" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed questions,...

This site, geared toward English as a Second Language students, provides "Getting Older But Not Sitting Around" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords,...

This site, geared toward English as a Second Language students, provides "Agencies Get Millions for Homeless" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords,...

This site, geared toward English as a Second Language students, provides "Tenants Watch Building Burn" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed...

Read the passage Hair Dye Chemicals and Cancer and answer the five-question quiz that follows.

We all can usually tell when we need water, but sometimes we don't listen to our body as closely as we should. This article relates the dangers of dehydration and the importance of preventing it. Links to related articles are also provided.

[Free Registration/Login Required] This nonfiction passage explains the process of watercolor painting. It includes comprehension questions and a teacher guide and can be used as both a read-aloud exercise and an individual practice tool.

This site, geared toward English as a Second Language students, provides "Water Under the Sink" as a reading exercise and audio translation. Multiple choice questions, vocabulary practice, close exercises, crosswords, closed questions,...

Concussions usually result from a sports related injury or accident. Find out more about this serious condition, how they are treated, and how to prevent them. The site also includes links to similar sites.

This lesson will challenge students to weigh the textual evidence for and against the claim that Ethan's woes lay in staying in Starkfield-and not in the details of his personal relationships. In the process, students will close read...

The practice exercise investigates force fields, closed curves, and work. The resource consists of an enlarged printable version of a force field available in PDF format.

[Free Registration/Login Required] This flipchart will help student find the main idea in writing as well as make inferences while reading. There are 2 web quests embedded that has numerous exercises with sound. There is an Activote...

Article suggests the use of opening and closing rituals in the art classroom for the purposes of centering students on art learning.

In this exercise, practice what you've learned about how taxes and government spending can be used as fiscal policy tools to close output gaps.

An online version of articles and activities from the Exploratorium Magazine, Vol. 23, No. 3. This issue looked at how we are able to examine the inside of the human body, what kinds of technology are used, and how each of them is used...

Through interactive learning exercises, students examine the different definitions of energy and how enzymes regulate how the energy is stored and used during cellular respiration. They also take a close look at photosynthesis to learn...

This is the second chapter of a statistics e-text developed collaboratively by Rice University, University of Houston Clear Lake, and Tufts University. It looks at many different types of data displays and the advantages and...