What Floats Your Boat?
Students use modeling clay, a material that is denser than water and thus ordinarily sinks in water, to discover the principle of buoyancy. They begin by designing and building boats out of clay that will float in water, and then refine their designs so that their boats will carry as great a load (metal washers) as possible. Building a clay boat to hold as much weight as possible is an engineering design problem. Next, they compare amount of water displaced by a lump of clay that sinks to the am
Author(s): Engineering K-Ph.D. Program,

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All Caught Up: Bycatching and Design
Bycatch, the unintended capture of animals in commercial fishing gear, is one of the hottest topics in marine conservation today. About 25% of the entire global catch is bycatch. This surprisingly high level of bycatch is responsible for the decline of hundreds of thousands of dolphins, whales, porpoises, seabirds and sea turtles each year. Through this curricular unit, students will analyze the significance of bycatch in the global ecosystem and propose solutions to help reduce bycatch. Student
Author(s): Engineering K-Ph.D. Program,

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Do Plants Eat?
Through a teacher-led discussion, students realize that the food energy plants obtain comes from sunlight via the plant process of photosynthesis. They learn what photosynthesis is, at an age-appropriate level of detail and vocabulary, and then begin to question how we know that photosynthesis occurs, if we can’t see it happening. Elodea is a common water plant that students can use to directly observe evidence of photosynthesis. When Elodea is placed in a glass beaker near a good light source
Author(s): Engineering K-Ph.D. Program,

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Cellular Respiration and Population Growth
Two lessons and their associated activities explore cellular respiration and population growth in yeasts. Yeast cells are readily obtained and behave predictably, so they are very appropriate to use in middle school classrooms. In the first lesson, students are introduced to yeast respiration through its role in the production of bread and alcoholic beverages. A discussion of the effects of alcohol on the human body is used both as an attention-getting device, and as a means to convey important
Author(s): Engineering K-Ph.D. Program,

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The Growling Stomach
In this lesson, the students will investigate what types of plants and insects they could eat to survive in the Amazon. They will research various plants and/or insects and identify characteristics that make them edible or useful for the trip. The students will create posters and present their findings to the class.
Author(s): Adventure Engineering,

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Copyright 2011 - Adventure Engineering, Colorado School of Mines,http://www.teachengineering.org/policy_ipp.php

Where's the Water?
In this lesson, the students will conduct an investigation to purify water. Students will engineer a method for cleaning water, discover the most effective way to filter water, and practice conducting a scientific experiment.
Author(s): Adventure Engineering,

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Absolute Beginner S2 #16 - Planning a Spanish Holiday
Learn Spanish with SpanishPod101.com! You’re very excited to leave Spain for a short getaway with your Spanish boyfriend. The only problem is, the two of you cannot decide what locations you want to visit outside of Spain! Spain’s central location offers many destinations that are just a short distance away. You feel so lucky to [...]
Author(s): SpanishPod101.com

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1.2.3 Pie charts: Nuclear power stations
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
Author(s): The Open University

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1.3.2: Pie charts: surgical removal of tattoos
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
Author(s): The Open University

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D-Day Invasion of Europe (2:01)
On June 6, 1944, Allied troops storm the beaches of Normandy in the largest amphibious assault in history. This is a good video that explains what happens on this day and has excellent graphics and clear explanations. A map of the area would be of benefit.





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Electrochemistry and Detection of Organic and Biological Molecules such as Catechols
This ASDL online article describes a lab experiment whereby students learn how to prepare a conducting thin-film polymer electrode for the analysis of catechol and the effect of ascorbic acid on the cyclic voltammetric results.
Author(s): Suzanne Lunsford

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Chromatography and Mass Spec Lectures
This site contains mass spectrometry and chromatography lecture notes for a graduate course. They are subdivided by topic (history, theory, etc.) and are easy to browse. They may be helpful to someone constructing their own course in chromatography and/or mass spectrometry. The notes are fairly complete. The historical sections may particularly save time in preparing courses. The notes also provide good information and a helpful outline to follow. The site also has some nice mass spectrometr
Author(s): Prof. Jose-Luis Jimenez , U. Colorado

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Animation of diode array detection in HPLC
This animation site deals specifically with diode array detection for liquid chromatography. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (TRSL) are also listed on ASDL. This site requires FLASH version 7 or
Author(s): TRSL

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DNA Evidence Training
These training modules are intended to provide interactive training that covers basic information about the identification, preservation, and collection of DNA evidence at virtual crime scenes related homicide, sexual assault, and burglary. Information addressed in this interactive training program is delivered in two modules. The Beginning Level Module focuses on issues that arise for the first-responding law enforcement officer. The Advanced Level Module delivers more in-depth information for
Author(s): National Commission on Future of DNA Evidence

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Compilation of FTIR Materials
Provides excellent tutorials on the principles of IR absorption, interpretation of spectra for structure determination, a spectral peak wizard, an authoritative glossary of spectroscopic terms, and links tutorials on how FT instruments work.
Author(s): Michael C. Martin

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DRC Plenary: Joan Snyder, 2010-11 Estelle Lebowitz Visiting Artist-in-Residence
Wednesday, February 28, 2011 Joan Snyder received the MacArthur Fellowship Award (popularly known as the "Genius Award") in 2007, and her paintings have been exhibited widely throughout the United States. She founded the Women Artist Series at Douglass College in 1971 (which has since then been renamed the Mary H. Dana Women Artist Series). A concurrent survey exhibition of her small paintings from 1965-2010, Joan Snyder/Intimate Works, is on view at the Mabel Smith Douglass Library Galleries t
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Number Concept
InterMath is a professional development effort designed to support teachers in becoming better mathematics educators. It focuses on building teachers' mathematical content knowledge through mathematical investigations that are supported by technology. InterMath includes a workshop component and materials to support instructors. For each of the following problems, consider how you would pose the same problem to your students. Would the wording need to change? Would you need to include more pictur
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2.3 Horizontal communication

In the OSI reference model there is a clear separation of services and protocols, but this separation is not always evident in practical applications, so it is worthwhile spending some more time on the differences between them. A service is provided by one layer to the layer above, and the capabilities of a service are defined in terms of primitives and their parameters. A service relates to two adjacent layers in the same system. In contrast, a protocol defines the communication between two
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

Dangerous Air
By tracing the movement of radiation released during an accident at the Chernobyl nuclear power plant, students see how air pollution, like particulate matter, can become a global issue.
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