Symmetries and Their Properties-Part 2: Reflections
This is the second i-Math in a four-part series of i-Maths entitled Symmetries and Their Properties. In this second i-Math you will investigate reflection, mirror, or bilateral symmetry. Mirrors can be used to create reflection symmetry. Many objects in nature, such as butterflies, the human body, and many types of leaves have bilateral symmetry. Objects we use every day, such as spoons, chairs, and cars also have bilateral symmetry. In this i-Math, you will learn about the mathematical properti
Observe an animation showing the formation of an unconformity.
This website hosts an animation depicting the formation of an unconformity in the rock record. Users can play, rewind, fast forward and stop the animation at any point in the formation as well as read detailed text outlining the process. The animation is part of the Earth Exploration Visualization collection.
Stereographic Projection of Crystal Faces
This site features a lecture by Dr. Stephen Nelson from Tulane University that explores a systematic way to define crystallographic angles. The lecture discusses crystallographic angles and gives an introduction to the use of stereographic projections for depicting the angular relationships between crystal faces. Scientific illustrations clarify the text.
Isostasy and Gravity
This site provides visual resources that illustrate the concept of isostasy and show how measuring gravity over mountain ranges provides evidence that mountains have deep roots. Visualizations in this collection include images, animations, interactive graphics and photographs. These resources can be integrated into lectures, classes, labs or other activities.
This site features a collection of visual resources about glaciers. Diagrams, images and animations reveal how a glacier forms, advances and retreats. These resources can be integrated into lectures, labs or other activities.
This site provides visual resources and supporting material about the study of sequence stratigraphy. Resources accessible from this site include informational text, images, animations and short videos which can be integrated into lectures, labs or other activities.
Tectosilicates, Carbonates, Oxides, & Accessory Minerals
This site from Tulane University consists of a lecture by Dr. Stephen Nelson on tectosilicate, oxide and carbonate minerals. The site features a table and description of the minerals in each group, including the nine types of SiO2, the different feldspars, and the calcite group. Optical and physical properties are explained, as well as the environment in which each mineral crystallizes.
Cause of Seasons Animations
This site features Flash, QuickTime, and GIF animations that illustrate the cause of seasons, how seasons impact the sun's apparent path across the Earth's sky, the subsolar point, and the circle of illumination. The animations can be paused and rewound to stress important points. These resources are suitable for use in lectures, labs, or other teaching activities.
Algebra.help - Simplifying expressions/equations with exponents
Follow this lesson to review basic exponent manipulation. Worksheets, further lessons, and lists of resources are also available. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/
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
Fort Morgan and the Battle of Mobile Bay
presents firsthand accounts, maps, and more pertaining to this Civil War conflict (August 5, 1864) in which Union Admiral David Farragut led about 20 ships and vessels into the torpedo-filled Mobile Bay.
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.
Chattanooga, Tennessee: Train Town
helps students see how geography and promotion combined to encourage the growth of Chattanooga, Tennessee, and how railroads shaped the organization and architecture of this and other cities from the mid-1800s to mid-1990s.
A New Lease on Life
explains how objects such as a letter written by Abe Lincoln and a dress worn by Lady Bird Johnson's are preserved to ensure safety while on exhibit in a museum. The site looks at steps taken by conservators to preserve objects, including examination, stabilization, research, and restoration.
Old Courthouse in St. Louis
This is an exhibit about a place which, throughout the 19th century, served not only as a house of justice, but also as a public gathering place for pioneers planning their westward trek across the plains. Its iron-framed dome was the forerunner of many similar domes erected on government buildings throughout the country. The site contains maps, readings, photos, drawings, as well as a guide for doing a student project.
Floyd Bennett Field: Naval Aviation's Home in Brooklyn
recounts the role of this airport in aviation history and World War II. In 1931, it was among the most advanced airports in the world. From it, early aviators launched pioneering and round-the-world flights during the 1930s. After the Japanese attack on Pearl Harbor, its duties as Naval Air Station New York grew rapidly. During the 1942 U-Boat offensive, it provided air cover for ship convoys embarking from New York.
Everglades Educational Resources
This site provides classroom activities, resources for teachers, a list of current articles, links to recommended readings, and field guides about Everglades National Park. It also tells how to plan class visits to the park.
You Decide: Should the American space program send a manned mission to Mars?
This educational guide focuses on whether or not the American Space Program should send a manned Mission to Mars. Students are invited to examine the arguments on both sides of the debate, developing critical thinking skills as they work through the activities. Students will learn how to support their arguments with evidence and reason. It is expected that at the end of this guide students will determine where they stand on this controversial issue.
Opportunity and Discrimination, A Dream of Gold
The lesson focuses on what it means to be a citizen of the United States and why the Chinese Exclusion Act is important when considering the concept of racism. It provides critical thinking activities directed at understanding how the Chinese used the legal system and the Constitution of the United States.
Peace Is Hard Work
In this lesson, students will create their own lists of what they consider to be the characteristics of a successful peacemaker. They will then research two peacemakers - Jody Williams and Desmond Tutu - and consider how each laureate might take action to end a specific conflict that is happening at the present time.