In the learning module Allies and Aliens students assume the role of agents from planet Earth who must assess varying degrees of prejudice and misinformation as they visit Web sites from other planets. Because most kids don't think to look for bias or false information online and subtle forms of racism may be difficult to recognize, Allies and Aliens uses the pretense of an evaluation mission to keep players from guessing its true purpose right away. The mission is divided into two parts. On Day One, students encounter information with little direction. On Day Two, the module's purpose becomes apparent. Allies and Aliens aims to teach students the basics about bias, stereotyping, misinformation and propaganda techniques, on the Internet and in other media. It also helps students to understand the difference between fact and opinion, and the importance of authenticating online information. The challenges of this module will ultimately sharpen students' research skills as well as their critical thinking skills. The experience will teach them to recognize viewpoint, bias, and manipulation -- online and off.
This Flash animation illustrates wave motion, or the movement of energy through water. Users can stop, play, fast forward and rewind the animation at any time. This visualization is one of several animations in a series developed as a component of Exploring Earth, a website that supports the textbook Earth Science.
This 11-slide PowerPoint presentation presents a short succession of schematic diagrams illustrating the structural evolution of anorthosites. The slides discuss the relative abundance of rare earth elements, describe six types of anorthosite occurrence, and contain pictures showing anorthositic texture. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Much of the more than 30 million tons of asbestos used in the United States since 1900 is still present as insulation in offices and schools, as vinyl-asbestos flooring in homes, and in other common products. This book presents a comprehensive evaluation of the relation of these fibers to specific diseases and the extent of non-occupational risks associated with them. It covers sources of asbestiform fibers, properties of the fibers, and carcinogenic and fibrogenic risks they pose. The book may be read online, printed, or purchased from the site.
This site features Java Applet, QuickTime, and Flash animations that illustrate characteristics and functions of the atmosphere. They show how atmospheric temperature, pressure, and density change with respect to changing altitude, the way different kinds of radiation (x-ray, ultraviolet, visible, and infrared) act in various levels of the atmosphere (troposphere, stratosphere, mesosphere, and thermosphere/ionosphere), how oxygen gas and chlorofluorocarbons (CFCs) interact with ultraviolet radiation to create and deplete ozone, and the manner in which radiation is trapped in the atmosphere, causing the greenhouse effect and global warming. The animations can be paused and rewound to stress important points. These resources are suitable for use in lectures, labs, or other teaching activities.
This NASA site explains the three major types of atmospheric aerosols - volcanic emissions, desert dust, and anthropogenic aerosols - and how they affect global climate. The site discusses the generation and atmospheric distribution of these aerosols, as well as the chemical and physical processes by which they create global cooling.
This site features a QuickTime animation with audio, a series of Java applets, and an MPEG that illustrate various aspects of atmospheric heating. They explain Earth's radiation balance, show the user how to draw temperature contours, and depict the basic idea of an urban heat island. These resources portray a variety of environments and are suitable for use in lectures, labs, or other teaching activities.
This site features GIFs, Java applets, MPEGs, and Flash animations that illustrate various forms of precipitation and moisture. They include an animation of air parcels and water vapor colliding with condensation nuclei which results in condensation and cloud formation, an interactive precipitation animation applet that allows the user to set wet and dry bulb temperatures to see if snow, ice, freezing rain, sleet, super cooled droplets, raindrops, or drizzle will fall, an animation of lake effect snow over the Great Lakes, and infrared satellite images of water vapor moving across the US. These resources portray a variety of environments and are suitable for use in lectures, labs, or other teaching activities.
This site features Flash and QuickTime animations that illustrate diurnal changes in wind patterns along coasts due to unequal heating of the land and water, the Coriolis Effect on the Earth's surface and in the context of everyday weather patterns, and global circulation, temperature, and wind patterns. The animations can be paused and rewound to stress important points. These resources are suitable for use in lectures, labs, or other teaching activities.
This site is a lecture about crystal structure from Dr. Stephen Nelson at Tulane University. Topics include axial ratios, intercepts of crystal faces (Weiss Parameters), determination of the Miller Index of a crystal, the modified notation of hexagonal systems, which is referred to as Miller-Bravais Indices, and using the Miller Index notation to designate crystal forms. Tables and illustrations accompany the text.
This PowerPoint presentation is part of the Whitman College petrology course. The presentation covers isobaric ternary T-X diagrams (An-Di-Fo), liquidus, intensive variables, cotectic, peritectic, and cooling paths. Solid solution and 4 component diagrams are described as well as the effect of water on melting temperatures. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Students will build a stream table and understand the importance of streams and rivers to the hydrologic cycle. A suite of labs can be done using the stream table, but each can also be a stand-alone exercise.
- National Association of Geoscience Teachers
- Benjamin Friesen
- Date Added:
This site provides visual resources that illustrate the process of chemical weathering. Animations demonstrate how temperature and precipitation affect the evolution of parent material from highly resistant primary minerals to both secondary minerals and minerals in solution, as well as showing rates of weathering of various common minerals. A collection of photographs gives examples of chemical weathering in both natural outcrops and constructed features such as tombstones and carvings. These resources can be integrated into lectures, labs or other activities.
This PowerPoint presentation is part of the Whitman College petrology course. The presentation covers classification of phaneritic igneous rocks, gabbroic rocks, ultramafic rocks, pyroclastic rocks and volcanic rocks using triangular diagrams, and classification of igneous rocks based on total alkalis vs. silica. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
This 24-slide PowerPoint presentation describes the classification of metamorphic rocks using texture and composition. Foliation, lineation, cleavage, schistosity, gneissose structure, hornfels, and granofels are discussed. Specific metamorphic rock types and modifying terms (porphyroblastic, spotted, augen, para-, ortho-) are defined and photographs of some are provided. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
Through static map interface, the Climate Diagnostic Center provides access to plots of current and historical United States temperature, precipitation and PDSI drought maps. The interface allows users to plot the raw data and view map visualizations of data.
This online book evaluates the current understanding of the linkages among climate, ecosystems, and infectious disease. It outlines the research needed to improve the understanding of these linkages and examines the potential for using climate forecasts and ecological observations to help predict infectious disease outbreaks. The entire book may be read online in HTML or PDF formats, and hard copies may be ordered from the site.
This site features Flash animations and a QuickTime movie that illustrate how waves and water molecules behave along the shore and in deep water settings. Animations depict the orbital motion of water molecules and show cross sections of waves at varying depths. These resources are suitable for use in lectures, labs, or other teaching activities.
This set of lecture notes about contact metamorphism contains information on contact aureoles, isograds, thermal conductivity, and latent heat of crystallization. Albite-epidote hornfels, hornblende hornfels, pyroxene hornfels, and sanidinite facies are presented. Skarns are also discussed. A number of ternary diagrams and illustrations are included. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html
This 32 slide PowerPoint presentation presents a list of alkaline rocks followed by an in depth look at continental alkaline magmatism of the East African Rift system. A chemical, geographic, and structural look at carbonatites follows. The presentation progresses through discussions of lamproites, lamprophyres, and kimberlites. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html