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Migrant Workers
Migrant construction workers from rural China describe their living conditions in Beijing in this Wide Angle video segment.
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Detainees
In this video from Wide Angle, learn about the conditions that have caused some Zimbabweans to leave their homeland for Botswana.
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Energy-Efficient Housing
We all know that it takes energy to provide us with the basics of shelter: heating, cooling, lighting, electricity, sanitation and cooking. To create energy-efficient housing that is practical for people to use every day requires combining many smaller systems that each perform a function well, and ...
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Compare Human-made Objects with Natural Objects
In small groups, students will experiment and observe the similarities and differences between human-made objects and nature. The students will compare the function and structure of hollow bones with drinking straws, bird beaks, tool pliers, bat wings and airplane wings. A classroom discussion can be held to discuss similarities and differences that were observed along with follow up assessment activities such as journal writing and Venn diagrams.
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Weather and Atmosphere
In this unit, students learn the basics about weather and the atmosphere. They investigate materials engineering as it applies to weather and the choices available to us for clothing to counteract the effects of weather. Students have the opportunity to design and analyze combinations of materials for use in specific weather conditions. In the next lesson, students also are introduced to air masses and weather forecasting instrumentation and how engineers work to improve these instruments for at
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Mathematical Modeling Using Real Radioactivity Data
In this lab, you can explore how radioactive radiation changes as a function of distance. This curriculum sets the Radioactivity iLab in the context of mathematics curriculum, asking you to consider: What type of mathematical function governs the intensity of radiation over distance?
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Cell Biology
Test your knowledge about cell differentiation, cell function and tissue culture.
Author(s): Yi Shu Dang Khuong

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Circuit Construction Kit (AC+DC)
This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time.
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Bringing Water to a Lesotho Village
invites students to conduct research and then simulate a Lesotho village water committee that is designing a water supply system to improve living and health conditions.
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Kamchatka: Siberia's Forbidden Wilderness
These lessons are designed for earth science and biology students in middle and high school classrooms, though extension suggestions for older and younger students will allow you to adapt each lesson for younger and older audiences. The lessons are designed to complement the Living Edens: Kamchatka program; each lesson will indicate clips from the program that focus on the topic at hand, though the lessons function equally well as stand-alone content.
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Tracing Genetic Ancestry Using DNA Microarrays
In this lesson students will read and discuss an article about genetic ancestry and genetic ancestry testing. 2. Apply knowledge of DNA and heredity to understand DNA microarrays, and concepts of genetic mutation and ancestry tracking. 3. Mimic the function of a DNA microarray used for genetic ancestry analysis by completing a paper-and-pencil activity. 4. Discuss the ethics of genetic testing in medical research.
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Fourier Sine Series
The Fourier sine series model displays the sine series expansion coefficients of an arbitrary function on the interval [0, 2?].
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Musculoskeletal
This sequence presents the basic principles of bone and joint structure and function and to review many of the disease entities related to this system and to the soft tissue as well. General clinical approaches to diagnosis and treatment will be discussed as well.
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229 GG Understanding Voice and Tone
A grammar expert offers Quick and Dirty Tips to help you identify your audience, understand the difference between voice and tone, and learn why voice and tone are important for your writing. The Grammar Girl print book is now available on Amazon.com! http://tinyurl.com/2pkej7
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Explore Quadratics
In this activity, students can select values for quadratic function coefficients, plot and explore multiple functions.
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Tornado Safety Tips Brochure
This site describes atmospheric conditions that cause tornadoes, how to prepare for tornadoes, and how to mitigate damage caused by them.
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Design of Dredging Equipment
Dredging equipment, mechanical dredgers, hydraulic dredgers, boundary conditions, design criteria, instrumentation and automation.
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Comparison of flower constancy and foraging performance in three bumblebee species (Hymenoptera: Api
The three bumblebee species Bombus terrestris (Linnaeus 1758), Bombus lapidarius (Linnaeus 1758), and Bombus pascuorum (Scopoli 1763) showed consistent differences in their respective levels of flower constancy when foraging on three different pairs of flower species. B. terrestris was always the most flower constant, followed by B. lapidarius, with B. pascuorum the least flower constant species. These interspecific differences in flower constancy were related to foraging performance under field
Author(s): Raine, Nigel,Chittka, Lars

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Excel Frequency in Chart
This video introduces how to use Excel to sort data, perform the frequency function, and present data in line chart.
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Brain Anatomy and Functions
This 3D animation shows the anatomy and function of the brain using color-coded areas. (02:05) There is no sound.
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