The newly re-elected Abraham Lincoln sought to unite the American people by interpreting the waning conflict as a divine judgment upon both sides of the war. This lesson will examine Lincoln's Second Inaugural Address to determine how he sought to reunite a divided country through a providential interpretation of the Civil War.

What arguments were put forth in objection to the Sedition Act? Supporters of Thomas Jefferson and James Madison believed the Sedition Act was designed to repress political opposition to President John Adams and the Federalists.

The U.S. victory over the Japanese Navy at Midway succeeded in stopping the Axis advance in the Pacific, and by early 1943 the Marines had driven the Japanese from Guadalcanal. This lesson will guide students through the military campaigns of the Pacific theater, tracing the path of the Allied offensives.

In 1798, Jefferson predicted the consequences of the passage of the Sedition (and Alien) Act. In this lesson, students will look at documents reflecting some of the consequences of the Sedition Act. How close was Jefferson's prediction?

What was life like for women in the first half of the 19th century in America? What influence did women have in shaping the attitudes towards slavery? Towards women's suffrage?

In this lesson students synthesize the information gathered in the earlier intelligent briefings and in the written intelligence in order to build a relationship with one other team of student diplomats

In this lesson, students are introduced to Tocqueville's argument about the "omnipotent" power of the majority in America and its consequences. After an initial statement that the "very essence" of democracy is majority rule, he contrasts the means by which state constitutions artificially increase the power of the majority with the U.S. Constitution, which checks that power.

In this lesson, students, working with their empire teams, will negotiate a treaty.

One of the important roles of diplomats is to negotiate treaties between countries

In Tocqueville's discussion of how the majority in America constrains freedom of thought, he makes some of the most extreme criticisms against democracy. For example, he says "I do not know any country where, in general, less independence of mind and genuine freedom of discussion reign than in America"; and, "there is no freedom of mind in America."

A key role of diplomats is to gather and analyze intelligence. In this lesson, students acting as diplomats will present a short "intelligence briefing" to the representatives of the other Early Modern empires.

In this lesson, students continue their examination of Tocqueville's argument about the power of the majority and its consequences. Having suggested previously that the majority can crush a minority without even hearing its screams, he elaborates on the dangers of unchecked and unlimited power in democratic America and how to deal with it.

In this activity students analyze Theodor Kaufmann's 1867 painting On to Liberty. Students practice finding information and making inferences based on the painting by completing a graphic organizer. Then students read a descriptive paragraph of the painting, noting where the author has cited information from the painting and where the author has made inferences and drawn conclusions. Then students analyze another painting of a similar theme, Eastman Johnson's A Ride for Liberty. The activity concludes by asking students to synthesize what they have learned about the Civil War based on the painting. The activity may make a good culminating lesson about the Civil War or an introductory lesson on Reconstruction.

This activity teaches students how to break down different elements of a political cartoon. Students examine how different symbols and images can be combined to convey meaning. Then students analyze a 1902 political cartoon about U.S. expansion overseas and the acquisition of new territories in the Philippines in Cuba. This activity includes a Smartboard Notebook file.

Students listen to a biography of Martin Luther King, Jr., view photographs of the March on Washington, and study King's use of imagery and allusion in his "I Have a Dream" speech.

Students experience a simulation of echolation, using the sensory method to walk along a path while blindfolded. This relates to the issue of bycatching by fisheries, which they learned about in the associated lesson. Bycatching affects marine animals, especially dolphins, which use echolocation to identify the location of objects in the water, but have difficulty identifying nets, and thus are often caught accidentally. Students learn how echolocation works, why certain animals use it to determine the size, shape and distance of objects, and how humans can potentially take advantage of dolphins' echolocation ability when developing bycatch avoidance methods.

Students observe and discuss a vacuum cleaner model of a baghouse to better understand how this pollutant recovery method functions in cleaning industrial air pollution.

This is a hands-on activity to learn that energy can be transformed into various forms. Potential energy is converted into kinetic energy. Moreover, this kinetic energy can be used (if more than the relative binding energy) to break atoms, particles and molecules to see “inside” and to study their constituents.

Students explore in detail how the Romans built aqueducts using arches—and the geometry involved in doing so. Building on what they learned in the associated lesson about how innovative Roman arches enabled the creation of magnificent structures such as aqueducts, students use trigonometry to complete worksheet problem calculations to determine semicircular arch construction details using trapezoidal-shaped and cube-shaped blocks. Then student groups use hot glue and half-inch wooden cube blocks to build model aqueducts, doing all the calculations to design and build the arches necessary to support a water-carrying channel over a three-foot span. They calculate the slope of the small-sized aqueduct based on what was typical for Roman aqueducts at the time, aiming to construct the ideal slope over a specified distance in order to achieve a water flow that is not spilling over or stagnant. They test their model aqueducts with water and then reflect on their performance.

With the assistance of a few teacher demonstrations (online animation, using a radiometer and rubbing hands), students review the concept of heat transfer through convection, conduction and radiation. Then they apply an understanding of these ideas as they use wireless temperature probes to investigate the heating capacity of different materials sand and water under heat lamps (or outside in full sunshine). The experiment models how radiant energy drives convection within the atmosphere and oceans, thus producing winds and weather conditions, while giving students the hands-on opportunity to understand the value of remote-sensing capabilities designed by engineers. Students collect and record temperature data on how fast sand and water heat and cool. Then they create multi-line graphs to display and compare their data, and discuss the need for efficient and reliable engineer-designed tools like wireless sensors in real-world applications.