Collection of primary documents that depict the social revolution and drama of the Emancipation in the words of the participants. Includes the voices of liberated slaves and defeated slaveholders, soldiers and civilians, common folk and the elite, Northerners and Southerners.

Article presents a useful discussion on the basics of public opinion polling, problems with the polling process, sources of public opinion data and tips for consumers.

Lesson plan assesses historical thinking skills by providing two primary sources on Thomas Jefferson's views on the constitutionality of the Louisiana Purchase.

Using this history lab, students will examine the impact immigration had on urbanization and the reform movements of the time, as well as the addressing the backlash to immigration by understanding nativism.

A good description of the growth and changes in plants from the seed through the adult plant. College level discussion that includes the chemicals involved in the regulation of plant growth.

Structure and metabolism of the brown algae; reproduction, classification, ecology, and uses of brown algae.

A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the ideal gas law. Shows apparatus and set-up; provides suggestions. Easily adaptable as a student project or lab investigation.

Read a brief introduction to mitosis, and then click on the 5 phases to read details and view photos of each in progress. Photo examples are excellent.

John F. Kennedy's inaugural speech is one of the most famous speeches in American history. Teachers can use this lesson to teach Language Arts standards, as well as Social Studies standards. This lesson plan includes pre-reading ideas, vocabulary explanations, discussion questions, and assessment ideas.