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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
