Visualize the nth roots of unity. Pupils calculate the nth roots of unity and find all n roots. Learners plot the solutions in the complex plane and observe that they are the vertices of a regular n-gon inscribed in the unit circle....

Many and many a year ago Edgar Allan Poe crafted the chilling tale of "Annabel Lee." The poem is the perfect vehicle to introduce Poe's concept of unity of effect, the idea that every element in a poem or story should help to develop a...

An article details everything you need to know about celebrating Kwanzaa at your school. An opening-day ceremony starts the seven-day holiday celebration followed a daily routine that includes a greeting, candle lighting, reciting an...

Propaganda posters are powerful. Using images from The Art of War: American Poster Art 1941-1945 exhibit, young historians analyze the symbols, images, colors, and text used to rally support for World War II. Through seven activities,...

From the Q'in to the Ming, get the facts on the great Chinese dynasties from early history with these great handouts and worksheets. Presented in a Word document, they include the years the dynasties were in existence, the dynasty...

What tactics are used in civil disobedience? Learners study the conditions in Alabama that led to the establishment of the Atlanta Student Movement, as well as consider the nature and effectiveness of civil disobedience.

Geometry meets earth science as high schoolers investigate the cause and features of the four seasons. The effects of Earth's axis tilt features prominently, along with both the rotation of the earth about the axis and its orbit...