PlayDoughTopo玩--面团威尼斯平底渔船

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1、Play-DoughTopoGradeLevel:5-12OverviewStudentsmakeaclaymodelvolcano,andthencreateatopographicmapofit.LearnerObjectives:Studentswill:TeacherBackground●Visualizehowa2–dimensionalMapmakershavedevisedaningenioustopographicmaprepresents3–dimensionallandscapewaytoshowthree–dimensionaltopographyonatwodimen

2、sionalflat●Understandcontourlinesandcontoursurfacewiththeuseofatopographicintervalmap.Onthesemapscontourlines●Increasetheirspatialvisualizationskillsillustratethevariationsinelevationofsurfaceterrain.AcontourlineisdefinedSetting:Classroomasalineofequalelevation.IfyouwereTimeframe:50-90minutes,depen

3、dingontowalkonacontourlinepaintedonthegroundaroundthesideofahillthecomplexityofthemodelvolcanoesyouwouldneithergoupnordown,butMaterials:remainlevel.Theelevationdifferencebetweenadjacentcontourlines,called●Copiesof“Play–DoughTopo”studentpagethecontourinterval,isselectedtobestshowthepatternofthelands

4、cape.●Copyof“Play–DoughTopo”teacherRelativelyflatlandscapesoftenarediscussionquestionsillustratedwithasmallcontourinterval●Softmodelingclay(potteryclayalsoof10feetorless.Mapsinmountainousworkswellbutcanbemessy)YoucansubstitutewithhomemadePlayDoughareas,however,oftenhavealarger1madefromflourandsalt.

5、Seerecipecontourintervalof40feetormore.Thebelow.contourintervalisusuallyprintedunder●Fishinglineorclaycuttingwirethescaleatthebottomoftopographicmaps.Topographicmapscanpresent●1/4”dowelorapencilamajorchallengeintheclassroom,butpracticeininterpretingthemisanexcellentwaytodevelopspatialrelationsskill

6、sandisausefultoolinitsownright.Thisactivityisdesignedtodevelopanunderstandingofwhatthecontourlinesonthemaprepresent,aswellasintroducetheterm"contourinterval."Activitylastmodified:February,2007Play-DoughTopocontinued...Studentsshouldalreadybefamiliarwith●Blankpaper(onepergroup)thebasicconceptofamapa

7、ndmapscale.●SpoonYoumaywanttocreateamapofyour●Pointedwoodentoolorbutterknifeclassroomortheplaygroundusingpacesas●Pencilmeasurementtohelpyourstudentsprepare.Vocabulary:Elevation,topography,Studentsmayuseloca