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Includes a brief biography of William Shakespeare, thematic and structural analysis of "Romeo and Juliet", critical views, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Provides a cultural and historical context for the development of the United States during the beginning of the twenty-first century, connecting current events with the past, including the Declaration of Independence, the Constitution, the Electoral College, civil rights, and the American economy. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Looks at the geography, politics, economy, history, and culture of Canada. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Provides a cultural and historical context for the development of the United States from 1865 to 1890, and includes Alaska's beginnings, preserving nature, the national parks, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Provides a cultural and historical context for the development of the United States from 1800 to 1811, and includes Thomas Jefferson's story, the Louisiana Purchase, Lewis and Clark, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Provides a cultural and historical context for the development of the United States from 1820 to 1845, and includes Texas under Mexican rule, the Texas Revolution, the Texas Republic, a new state, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Text and illustration look at the element aluminum. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Explores the geography, history, culture, and economics of the state of Hawaii. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Explores the geography, history, culture, and economics of the state of Pennsylvania. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Discover how doctors can use nanotechnology, tiny electronic devices and sensors, to create innovative new treatments for their patients; and learn about how this technological innovation is evolving. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.