乐高教参--机器人动物园教参(英文).docx

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1、ROBOTZOOWalklikeapenguinLearningtargetsNestingloops,effectsofvariedpowersettings;logicalsequencingofcommandsVocabularyICT;waitfordark,calibratingsensorthresholdsMath;measuringtime,measuringdistance,greaterorlessthanScience&Technology;powerandmotors,ref

2、lectingsoundMaterialsneeded19648EducationResourceSetfor2children1NXT,2motors,1ultrasonicsensor,1lightsensorandcablesfor2childrenCopyofWalklikeapenguinworksheetforeachchildPreparationChargeNXTbatteriesbeforeeveryclassConnect(5min)Tellthestory:Thatoldpus

3、h-alongpenguinmusthavebeendesignedaboutahundredyearsago,thinksPreston.Itmustbepossibletodesignaroboticpenguinwithawalkthatisjustascute.•Askthechidlren:Whatsortofbehaviorsandfeaturesmightarobotpenguinhave?(Itcouldwalkwithawiggle.Itwillnotbeabletoswim,bu

4、titmightbeabletoglideonitstummy.)Construct(20min)•GuidethechildrentotheConstructmodelAsectionandhavethembuildthepenguin.•Ask:Whichpartsarethewings?Whicharethefeet?Whichpartswillmove?(Thefeetareattachedtomotors,sotheywillmove.)ConstructtheProgram(10min)

5、•Theprogramturnsontwomotorsathalfpoweratthesametime.Sothepenguinwalksslowlystraightahead.Havethechildrenchangethepowerofonemotortobeslowerthantheother.Thiswillmakethepenguinwalkincircles.(Forexample25and50.)LEGO,theLEGOlogo,theBrickandKnobconfiguration

6、,andMINDSTORMSaretrademarksoftheLEGOGroup.©2008TheLEGOGroup.ROBOTZOOContemplate(15min)•Havethechildrenthinkofwaystomakethepenguinwalkinsmallerandsmallercircles.(Makethepowerdifferencebetweenthetwomotorsevenbigger,forexample25and80.)•Havethechildreninve

7、nttheirownwigglypenguinwalk.•Allowtimeforthemtoshowtheirwalkstoeachother.Continue(20min)Walklikeapenguin•Discuss:Whatotherfeaturesmightarobotpenguinhave?(Guardagainstpredatorssuchassealsandskuas.)•GuidethechildrentotheConstructmodelBsectionandhavethem

8、buildtheSealSpotter.Explain:theultrasonicsensorcan‘see’howfarawayobjects(likeleopardseals)arebymakinghighpitchedsoundsandlisteningfortheechoes.•Havethemchangetheprogramtocompletethefollowingtasks:•1)Triggerthethresholdtodetectobjectsles