Underneath the Mountains
These lecture notes discuss the role of buoyancy, flexure, and erosion in the earth's topography and the lifetime of mountain ranges. It recalls Pascal's law that pressure of a material overlying a fluid is equal everywhere at a given depth and Archimedes' principle that a body in a fluid is buoyed up with a force equal to the weight (mass x volume) of the displaced fluid. Continents are buoyant crust floating on denser mantle, so a 4 km high mountain range must have a 20 km deep root. According
Teaching Structural Geology in the 21st Century
This site from the "On the Cutting Edge" workshop series offers a variety of resources for faculty members who teach undergraduate structural geology. There are collections of classroom activities, internet and computer resources, useful articles and maps, presentations from the summer 2004 workshop on teaching structural geology, working groups and a discussion forum, and lots of creative ideas for teaching structural geology. Students will also find the site useful for supplementing class lect
Teaching Structural Geology in the 21st Century
This site from the "On the Cutting Edge" workshop series contains a collection of activities that can be used in undergraduate structural geology courses. The collection includes lab exercises, classroom activities, problem sets and more.
Teaching Hydrogeology in the 21st Century
This site from the "The On the Cutting Edge" workshop series features a wealth of ideas, teaching examples and web-based resources that are useful for teaching undergraduate hydrogeology.
Solar System Animations
This site features Flash animations that illustrate phases of the moon, distances between planets, total, partial, and annular eclipses, and solar system formation that includes an example of the impact that created the moon. These resources are suitable for use in lectures, labs, or other teaching activities.
Petrography and Petrology
This site is the home page for the petrography and petrology class at Brock University. The site presents general information about igneous petrology, nomenclature and classification information, modal and normative analysis, and the chemistry of igneous rocks. Further topics discussed include fractionation, hybridization and assimilation, and fractional crystallization, as well as types of metamorphism, compositional groups, and Barrovian metamorphism. The information is presented as a sequence
Maritime History of Massachusetts
This is is a travel itinerary highlighting 89 historic places that tell the story of Massachusetts' relationship with the sea. Read essays about lighthouses and lifesaving stations, ships and shipbuilding, the U.S. Navy, and maritime commerce.
The Great Chief Justice at Home
offers photos of John Marshall's residence in Richmond, Virginia. This website also describes how Marshall, who wrote 519 opinions in his 34 years as chief justice (1801-1835), transformed the Supreme Court from obscurity into a prominent, powerful institution.
The Battle of Horseshoe Bend: Collisions of Cultures
looks at the decisive battle of the Creek War (1813-1814), where Andrew Jackson fought 1,000 American Indian warriors who were trying to regain autonomy. It examines the history of the battle and provides maps, images, and readings.
Paterson, New Jersey: America's Silk City
examines conditions that led to the famous 1913 strike in a city that produced nearly half the U.S.'s manufactured silk. Conflicts between labor and management increased in the U.S. during the early 20th century. In Paterson, on January 27, 1913, when Henry Doherty tried to extend a new four-loom system throughout his plant, 800 silk weavers walked out. More than 20,000 Paterson silk workers took part in the strike, which lasted over five months.
The News About the News
This lesson will invite students to explore how news shows are constructed and to assess the way a newscast prioritizes different categories of news.
Urban renewal policies enacted in San Francisco's Fillmore district in the 1950s-60s provide a vivid case study in public policy, federal and local government, and citizen activism. This important history sheds light on present-day urban renewal policies, such as empowerment zones and welfare-to-work.
What Do You See?
This is a lesson in which students analyze a single Civil War photograph and then find and analyze related images. The aim is to help students see relationships between the Civil War and American industrialization.
Omaha Indian Arts
This site offers a sampling of traditional Omaha Indian music. The sound recordings include wax cylinder recordings made in the 1890s, as well as songs and spoken-word segments from the 1983 Omaha harvest celebration pow-wow, segments from an interview with an Omaha elder in 1983, songs and speeches from a performance by members of the Hethu'shka Society in 1985, and portions of an interview with an Omaha musician in 1999. Photos, fieldnotes, and more from the 1983 pow-wow are included.
Literature and Poetry Community Center
is a collection of resources about poetry, literature, and writers -- William Blake, Stephen Crane, Mark Twain, Walt Whitman, Langston Hughes, Zora Neale Hurston, and others. Hear Allen Ginsberg, Rita Dove, and Stanley Kunitz talk about their work. Watch videos of Americans discussing their favorite poems. Read a weekly column featuring an American poem. Use the guide to streaming video literature to find webcasts of writers discussing their work.
A picture is worth a thousand words -- but which words? Questions can help students decode, interpret, and understand photographs thoughtfully and meaningfully.
Oral history links and resources
Guides, tips, lesson plans, and examples of student projects on the web.
Ongoing assessment strategies for writing
Making final assessment easier by helping students improve the quality of their writing along the way.
Observing other teachers
Learning from other teachers is an important means of professional development. Here are some suggestions for observing successful teachers in your school, in other schools, and on the web.
Number sense every day
Number sense -- an intuitive feel for numbers and their relationships -- develops when children solve problems for themselves.