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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_simple/cub_simple_lesson01.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>Engineering: Simple Machines</title><creator>Integrated Teaching and Learning Program, </creator><keywords><keyword>axle</keyword><keyword>build</keyword><keyword>engineer</keyword><keyword>force</keyword><keyword>inclined plane</keyword><keyword>lever</keyword><keyword>mechanical advantage</keyword><keyword>pulley</keyword><keyword>pyramid</keyword><keyword>screw</keyword><keyword>simple machine</keyword><keyword>wedge</keyword><keyword>wheel</keyword><keyword>work</keyword></keywords><vocabulary><word>Design</word><word>Engineering</word><word>Force</word><word>Inclined plane</word><word>Lever</word><word>Mechanical advantage </word><word>Pyramid</word><word>Pulley</word><word>Screw</word><word>Simple machine</word><word>Spiral</word><word>Tool</word><word>Wedge</word><word>Wheel and axle</word><word>Work</word></vocabulary><summary>Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines — the wedge, wheel and axle, lever, inclined plane, screw, and pulley — in the context of the construction of a pyramid, gaining high-level insights into tools that have been used since ancient times and are still in use today. In two hands-on activities, students begin their own pyramid design by performing materials calculations, and evaluating and selecting a construction site. The six simple machines are examined in more depth in subsequent lessons in this unit.</summary><engrConnection>
		
			
				Why do engineers care about simple machines? How do such devices help engineers improve society? Simple machines are important and common in our world today in the form of everyday devices (crowbars, wheelbarrows, highway ramps, etc.) that individuals, and especially engineers, use on a daily basis. The same physical principles and mechanical advantages of simple machines used by ancient engineers to build pyramids are employed by today’s engineers to construct modern structures such as houses, bridges and skyscrapers. Simple machines give engineers added tools for solving everyday challenges.
			
		
	</engrConnection><learningObjectives><learningObjective>Understand what a simple machine is and how it would help an engineer to build something.</learningObjective><learningObjective>Identify six types of simple machines.</learningObjective><learningObjective>Understand how the same physical principles used by engineers today to build skyscrapers were employed in ancient times by engineers to build pyramids.  </learningObjective></learningObjectives><timeRequired unit="minutes">15</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Greg Ramsey</contributor><contributor>Glen Sirakavit</contributor><contributor>Lawrence E. Carlson</contributor><contributor>Jacquelyn Sullivan</contributor><contributor>Malinda Schaefer Zarske</contributor><contributor>Denise Carlson, with design input from the students in the spring 2005 K-12 Engineering Outreach Corps course</contributor></contributors><requirements><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_presentation.ppt</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_refsheet.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_refsheet.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_machinesworksheet.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_machinesworksheet.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_machinesworksheetanswers.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_machinesworksheetanswers.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_scavhuntworksheet.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_scavhuntworksheet.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_scavhuntworksheetanswers.doc</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_simple/cub_simple_lesson01_scavhuntworksheetanswers.pdf</requires></requirements><references><reference>http://www.dictionary.com</reference><reference>http://sln.fi.edu/qa97/spotlight3/spotlight3.html</reference></references><eduStandards><eduStandard><id>S11416CE</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>D. Tools, materials, and skills are used to make things and carry out tasks.
</description><lowgrade>3</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">2011-03-30</created><gradeLevel lowerbound="3" upperbound="5">4</gradeLevel><audience>Teacher</audience></tem>

