In this activity, students explore the properties of a unit circle and its mapping functions.

A map of five Venn diagram circles showing the relationships between characters in The Tragedy of Julius Caesar and their roles in the play.

[Free Registration/Login Required] Teach your students to visualize the writing process using this graphic organizer as a tool.

Abeni works at the pyramids. Visit her and find out more about circles and triangles.

Using maps, students explore the concept of distances along great circles and straight lines. Airline flight paths are used as an example.

Students will play an interactive game to identify the circumference, radius, center, and diameter of circles.

Kyan is an African villager. Can you help him name and define different parts of shapes?

A map of the ten regional Imperial Circles of Germany, (Burgundian, Westphalian, Lower Saxon, Upper Saxon, Lower Rhenish, Upper Rhenish, Franconian, Suabian, Bavarian, and Austrian) created after 1543, when Charles V established the...

A map from 1868 of Asia showing physical features and natural resources of the region. The map shows political boundaries of the time, with capitals, major cities, and ports. The map shows mountain systems with black lines of variable...

A map of Scotland from 1885, showing major cities, towns, railroads, rivers, lakes, terrain, and coastal features. An inset map shows the Orkney and Shetland islands. Mountain elevations are shown in feet, and the ferry distances to...

A map from 1868 of Europe, showing the physical features, climate, and commercial resources of the region. Mountain chains are represented by lines of varying thickness, with the broader the line, the greater the elevation. The highest...

A map from 1868 of North America, Central America, and the Caribbean showing the physical features of the region, vegetation types, ocean currents, temperatures, principal products and mineral deposits. Mountain chains are represented by...

A map from 1868 of South America showing the physical features of the region, vegetation types, ocean currents, temperatures, principal products and mineral deposits. Mountain chains are represented by lines of varying thickness, with...

A map from 1868 of the United States showing physical features, mean annual temperatures, rainfall distribution, watersheds, and principal products in the area. The average annual temperatures are shown by isotherms, with temperatures...

A map from 1912 of the United States, subtitled "Distribution of Population and Railways in 1900" showing the increase in population and expansion of the railroad network since 1850. The map is color-coded to show population densities...

A map from 1911 of the Dominion of Canada showing the boundaries of the provinces and territories north to Grant Island above the Arctic Circle, major cities, existing and proposed railways, mountain systems, lakes, rivers, coastal...

A map of the United States showing the results of the 1912 presidential election. The map is keyed to show the states carried by the Democrats (Woodrow Wilson), the Progressive Party (Theodore Roosevelt), and Republicans (William Howard...

A map of the United States showing the results of the 1884 presidential election. The map is keyed to show the states carried by the Democrats (Grover Cleveland), Republicans (James Blaine), and the areas where minor parties garnered 5...

A map of the United States showing the results of the 1916 presidential election. The map is keyed to show the states carried by the Democrats (Woodrow Wilson), Republicans (Charles Evans Hughes), and shows the Socialist Party votes...

A map of the United States showing the results of the 1900 presidential election. The map is keyed to show the states carried by the Republicans (William McKinley), Democrats (William Jennings Bryan), and the areas where minor parties...

A map of the United States showing the results of the 1904 presidential election. The map is keyed to show the states carried by the Republicans (Theodore Roosevelt), Democrats (Alton B. Parker), and the areas where minor parties...

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 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 physical map of Europe from 1916 showing color-coded elevations and water depths for the area extending from Iceland to the Ural Mountains in Russia Proper, and the Arctic Circle to the Mediterranean Sea. Land elevation colors range...