A map of the United States showing the results of the presidential election of 1860. The map is color-coded to show the states carried by Lincoln (Republican), Breckinridge (Southern Democrat), Bell (Constitutional Union), and Douglas...

A map from 1920 of the Greater and Lesser Antilles, and the Bahama Island group, showing capitals, major cities, towns and ports, railroads, submarine telegraph routes, terrain, and coastal features. The foreign possessions in the region...

A map from 1920 of the Greater and Lesser Antilles, and the Bahama Island group, showing capitals, major cities, towns and ports, railroads, submarine telegraph routes, terrain, and coastal features. The foreign possessions in the region...

A map of England and Wales in AD 550, after the departure of the Romans (AD 410) and during the migration of the Angles, Saxons, and Jutes from Europe. The map is color-coded to show the territories of the native Britons or Welsh,...

A map of England and Wales in AD 584 at the end of the conquest of the Britons by West Saxons under Ceawlin and Cutha. The map is color-coded to show the territories of the native Britons or Welsh, Angles, Saxons, Jutes, and the Scots...

A map of England (Britannia) under the Roman Empire, from the time of the first invasion by Julius Caesar (55 BC) to the Roman withdrawal in AD 410. The Roman Period of control of Britannia is generally considered AD 43 to 410. On this...

Sharpen your computation and problem solving skills with this lesson that focuses on order of operations. Related vocabulary and detailed examples also provided.

This site from the Highline Advanced Math Program shows you how to use the order of operations in order to solve an equation.

Sentences and phrases can be formed to help you remember the order of operations.

This lesson introduces brackets and how they are used. It is 7 of 15 in the series titled "Brackets."

Use this handy guide for a quick reference to punctuation and capitalization rules. Includes rules for end marks, apostrophes, capitalization, commas, quotation marks, and many more!

Demonstrates how to factor simple polynomial expressions such as "2x + 6".

To solve an equation find the value of the variable that makes the equation true. For more complicated equations, this process can take several steps.