Polymers are a vital part of our everyday lives and nearly all …
Polymers are a vital part of our everyday lives and nearly all consumer products have a plastic component of some variation. Students explore the basic characteristics of polymers through the introduction of two polymer categories: thermoplastics and thermosets. During teacher demos, students observe the unique behaviors of thermoplastics. The fundamentals of thermoset polymers are discussed, preparing them to conduct the associated activity in which they create their own thermoset materials and mechanically test them. At the conclusion of this lesson-activity pair, students understand the basics of thermoplastics and thermosets, which may entice their interest in polymer engineering.
As if they are environmental engineers, student pairs are challenged to use …
As if they are environmental engineers, student pairs are challenged to use Google Earth Pro (free) GIS software to view and examine past data on hurricanes and tornados in order to (hypothetically) advise their state government on how to proceed with its next-year budget—to answer the question: should we reduce funding for natural disaster relief? To do this, students learn about maps, geographic information systems (GIS) and the global positioning system (GPS), and how they are used to deepen the way maps are used to examine and analyze data. Then they put their knowledge to work by using the GIS software to explore historical severe storm (tornado, hurricane) data in depth. Student pairs confer with other teams, conduct Internet research on specific storms and conclude by presenting their recommendations to the class. Students gain practice and perspective on making evidence-based decisions. A slide presentation as well as a student worksheet with instructions and questions are provided.
Students analyze international oil consumption and production data. They make several graphs …
Students analyze international oil consumption and production data. They make several graphs to organize the data and draw conclusions about the overall use of oil in the world.
Students explore the definition of a function by playing an interactive game …
Students explore the definition of a function by playing an interactive game called "Club Function." The goal of the game is to be in the club! With students each assigned to be either a zebra or a rhinoceros, they group themselves according to the "rules" of the club function. After two minutes, students freeze in their groups, and if they are not correctly following the rules of the club function, then they are not allowed into the "club." Through this activity students come to understand that one x-coordinate can only have one corresponding y-coordinate while y-coordinates can have many x-coordinates that correspond to it.
This interactive resource adapted from the National Park Service describes the many …
This interactive resource adapted from the National Park Service describes the many forces that affect shorelines, including tides, weathering, erosion, and deposition.
This video from NASA describes the detailed computer modeling used to predict …
This video from NASA describes the detailed computer modeling used to predict that colliding neutron stars can produce gamma-ray bursts similar to those associated with black holes.
As a continuation of the theme of potential and kinetic energy, this …
As a continuation of the theme of potential and kinetic energy, this lesson introduces the concepts of momentum, elastic and inelastic collisions. Many sports and games, such as baseball and ping-pong, illustrate the ideas of momentum and collisions. Students explore these concepts by bouncing assorted balls on different surfaces and calculating the momentum for each ball.
This article examines the relationship between custody, access, and provenance through a …
This article examines the relationship between custody, access, and provenance through a case study of the records of a former Danish colony, the United States Virgin Islands. In 1917, when the United States purchased the Virgin Islands from Denmark, Danish archivists removed the majority of records created there during colonial rule and deposited them in the Danish National Archives. Following its establishment in the 1930s, the National Archives of the United States sent an archivist to the Virgin Islands to claim most of the remaining records and ship them to Washington. The native population of the Virgin Islands, primarily former colonials whose ancestors were brought from Africa as slaves, were left without access to the written sources that comprised their history. While all three parties have claims to custody of the records, the claim of the people of the Virgin Islands relies on an expanded definition of provenance that includes territoriality or locale, as well as on a custodial responsiblity for access. The competing custodial claims suggest a dissonance between legal custody, physical custody, and archival principles that may be resolvable through post- custodial management practices.
This art history video discussion examines the Column of Trajan, Carrara marble, …
This art history video discussion examines the Column of Trajan, Carrara marble, completed 113 C.E., Rome. Dedicated to Emperor Trajan (Marcus Ulpius Nerva Traianus b. 53 , d. 117 C.E.) in honor of his victory over Dacia (now Romania) 101-02 and 105-06 C.E.
In this video segment, members of the ZOOM cast experiment by bending …
In this video segment, members of the ZOOM cast experiment by bending and folding sheets of paper into various shapes to see which shape will support the weight of a heavy book.
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