Computational Thinking-unplug2

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1、33LESSON3:COMPUTATIONALTHINKINGLESSONNAME:ComputationalThinkingLessontime:45–60Minutes:Preptime:10MinutesMainGoal:Introducethe“ComputationalThinking”modelasawayofpreparingreal-worldproblemsfordigitalrepresentation.OVERVIEW:•UseteamworktosolvecomplexproblemsWithnothingbutpaperandmarkers,stu-dentswil

2、llearnthefourstepsofcomputa-MATERIALS:tionalthinking.Afterabriefintroduction,•MonsterCatalog(1pergroup)studentsshouldbesplitintogroupswhere•Blankpiecesofpaper(3perperson)theywillhavetocreatedirectionsforother•Markers,pens,orpencils(1packpergroup)studentstodrawaspecificmonster(froma•Scissorscatalogo

3、fpre-selectedmonsters).Theentiretaskmustbedecomposed,thenteamswillPREPARATION:analyzeallmonstersinthecatalogforpat-Printmonsterimagesforeachgroup.terns,abstractsimilardetailsfromthemon-Monsterfacesshouldbeontraditionalsters,thenusethatinformationtocreateanpaper,whilemonster“parts”areprintedalgorith

4、m(directions)foranotherteamtoontransparencies(Orstudentscantracedrawacertainmonster.monsterpartsontracingpaper.Ormon-sterpartscanbeprintedontraditionalTeamswillthenswitchalgorithmswithpaperandthencutout.).anothergroupanddrawthemonsterbasedGathermonsterimages,scissors&markersonwhatthatalgorithmindic

5、ates.Istheforeachgroup.drawingwhattheoriginalteamintended?Writevocabularywordsontheboardorprojectthemwithdocumentcamera.OBJECTIVE:Studentswill—•Learnthefourstepsofcomputationalthinking13LESSON3:COMPUTATIONALTHINKINGVOCABULARY:Decompose—TobreakahardproblemupComputationalThinking—Amethodofintosmaller

6、,easieronesproblem-solvingthathelpscomputerscien-Pattern—AthemethatisrepeatedmanytistsprepareproblemsfordigitalsolutionstimesAbstraction—Removingdetailsfromasolu-Program—Instructionsthatcanbeunder-tionsothatitcanworkformanyproblemsstoodandfollowedbyamachineAlgorithm—Alistofstepsthatallowyoutocomple

7、teataskComputationalthinkinghelpsmakelightworkofdifficultproblems.23LESSON3:COMPUTATIONALTHINKINGREVIEW:Thisreviewsegmentisintendedtogettheclassthinkingbacktothelastlesson.Ifyouarecoveringtheseactivitiesout