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<tem xmlns="http://www.teachengineering.org/tem/elements/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.teachengineering.org/tem/elements/1.0/ http://www.teachengineering.org/schemas/tem.xsd"><identifier>http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_dams/cub_dams_lesson02.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>Water and Dams in Today’s World</title><creator>Integrated Teaching and Learning Program, </creator><keywords><keyword>arch dam</keyword><keyword>buttress dam</keyword><keyword>dam</keyword><keyword>embankment dam</keyword><keyword>force</keyword><keyword>glacier</keyword><keyword>gravity dam</keyword><keyword>hydrologic cycle</keyword><keyword>structure</keyword><keyword>video</keyword><keyword>USSD</keyword><keyword>water</keyword><keyword>water cycle</keyword><keyword>water resource</keyword><keyword>water supply</keyword></keywords><vocabulary><word>arch dam</word><word>buttress dam</word><word>dam</word><word>embankment dam</word><word>engineer</word><word>force</word><word>gravity dam</word><word>hydrologic cycle</word><word>spillway</word></vocabulary><summary>Students learn about the importance of dams by watching a video that presents historical and current information on dams, as well as descriptions of global water resources and the hydrologic cycle. Students also learn about different types of dams, all designed to resist the forces on dams. (If the free, 15-minute “Water and Dams in Today’s World” video cannot be obtained in time, the lesson can still be taught. See the Additional Multimedia Support section for how to obtain the DVD or VHS videotape, or a PowerPoint presentation with similar content [also attached].) </summary><engrConnection>
		
			
				When engineers design dams and other large structures, they calculate the forces expected to act on the structure as well as its potential for reacting to these forces. Different geometries and materials respond differently to the forces created by a dam. As part of the design process, engineers take into consideration information about the intended use of a dam to help them determine the most suitable size and type.
			
		
	</engrConnection><learningObjectives><learningObjective>Identify various types of dams.</learningObjective><learningObjective>Understand the different forces acting on a dam.  </learningObjective><learningObjective>Understand the considerations engineers must make when desinging a dam.  </learningObjective></learningObjectives><timeRequired unit="minutes">40</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Sara Born</contributor><contributor>Kristin Field</contributor><contributor>Denali Lander</contributor><contributor>Lauren Cooper</contributor><contributor>Denise W. Carlson</contributor></contributors><requirements><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_dams/cub_dams_lesson02_worksheet_draft3_tedl_dwc.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_dams/cub_dams_lesson02_worksheet_draft3_tedl_dwc.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_dams/cub_dams_lesson02_worksheetas_draft3_tedl_dwc.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_dams/cub_dams_lesson02_worksheetas_draft3_tedl_dwc.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_dams/cub_dams_lesson02_presentation-ussd_tedl.ppt</requires></requirements><references><reference>http://www.pbs.org/wgbh/buildingbig/dam/basics.html</reference><reference>Kagen, S. Cooperative Learning. San Juan Capistrano, CA: Kagan Cooperative Learning, 1994. (Source for Concept Juggle assessment activity.)</reference><reference>http://imnh.isu.edu/digitalatlas/geog/rrt/RRTfr.htm</reference><reference>http://imnh.isu.edu/digitalatlas/geog/rrt/part3/chp8/73.htm</reference><reference>http://en.wikipedia.org/wiki/Roosevelt_Dam</reference><reference>http://ussdams.com/ussdeducation/index.html</reference></references><eduStandards><eduStandard><id>S1141716</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>C. The use of technology affects the environment in good and bad ways.</description><lowgrade>3</lowgrade><highgrade>5</highgrade></eduStandard><eduStandard><id>S1141722</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>C. Individual, family, community, and economic concerns may expand or limit the
development of technologies.</description><lowgrade>3</lowgrade><highgrade>5</highgrade></eduStandard><eduStandard><id>S11425A1</id><locale>Colorado</locale><type>Science</type><description>a. Analyze and interpret data identifying
ways Earth's surface is constantly
changing through a variety of
processes and forces such as plate
tectonics, erosion, deposition, solar
influences, climate, and human
activity
</description><lowgrade>5</lowgrade><highgrade>5</highgrade></eduStandard></eduStandards><geoCoverage>United States</geoCoverage><rights>Copyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder</rights><rights>http://www.teachengineering.org/policy_ipp.php</rights><isPartOf>http://www.teachengineering.org/</isPartOf><created type="W3CDTF">2010-08-23</created><gradeLevel lowerbound="4" upperbound="6">5</gradeLevel><audience>Teacher</audience></tem>

