nos resource cards by rebecca vieyra, cary‐grove high

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NOS Resource Cards by Rebecca Vieyra, Cary‐Grove High School, used with permission. Title: The Real Prize Inside: Learning about Science and Spectra from Cereal Boxes Content Area: Aspects of Nature of Science o Observation versus Inference Knowledge of Inquiry o Explanations are developed from a combination of collected data and what is already known. Source: Kustusch, M. B, Gaffney, J. D. H., & Beichner, R. (2009). The real prize inside: Learning about science and spectra from cereal boxes. The Physics Teacher, 47, 451‐453. Target Grade / Course Level: 9‐12 / Science (any science content area would be appropriate). Standard: ILS STATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea: Student look for patterns in UPC barcodes that have been separated from their products using observation. Students make hypotheses about the meaning of the patterns via inferences, and then predict the products associated with various barcodes using collected data and what is already known. Use: This activity would most likely be appropriate at the outset of a science class. Students are split into small groups and given four UPC labels that have been separated from their product (the authors of the article use four different cereals, two of which are Quaker brand). Students are asked to find as many patterns as possible. After time for small group discussion, the instructor helps the entire class to synthesize their findings. The teacher explicitly describes the patterns seen from the UPC labels as observation. The groups then develop hypotheses about the meanings of the patterns. The instructor presents the small groups with the products attached to the UPC’s that may disprove the old hypotheses and result in new hypotheses. The class’ hypotheses then are revised. The instructor helps students to directly reflect on knowledge development from collected data and what is already known by asking them what would be required to disprove their hypotheses. Finally, the instructors gives the small groups unmarked UPC’s, and asks students to develop predictions for the unmarked UPC’s for the products to which they belong. The instructor explicitly describes the process of applying observed patterns to as‐of‐yet unobserved phenomena as inference. Materials: The following materials are needed per small group of 3‐5 students: UPC barcodes (either from various groupings of similar products or photocopied out of the journal article.) Right and left side codes for UPC (photocopied out of the journal article or found online). Whiteboards / place to display group information. Modifications: The journal article uses particular brand cereals, but any brand could be used for these purposes. If food products are not available, UPC labels from textbooks could work just as well. For younger students, number or color patterns representing UPC labels could be used. A preliminary activity could be to simply decode the labels, and then look for patterns in the data. For the visually impaired, instead of decoding with numbers, the UPC labels could be translated into Braille.

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NOSResourceCardsbyRebeccaVieyra,Cary‐GroveHighSchool,usedwithpermission.Title:TheRealPrizeInside:LearningaboutScienceandSpectrafromCerealBoxesContentArea:

‐ AspectsofNatureofScienceo ObservationversusInference

‐ KnowledgeofInquiryo Explanationsaredevelopedfromacombinationofcollecteddataandwhatisalreadyknown.

Source:Kustusch,M.B,Gaffney,J.D.H.,&Beichner,R.(2009).Therealprizeinside:Learningaboutscienceandspectrafromcerealboxes.ThePhysicsTeacher,47,451‐453.TargetGrade/CourseLevel:9‐12/Science(anysciencecontentareawouldbeappropriate).Standard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea:StudentlookforpatternsinUPCbarcodesthathavebeenseparatedfromtheirproductsusingobservation.Studentsmakehypothesesaboutthemeaningofthepatternsviainferences,andthenpredicttheproductsassociatedwithvariousbarcodesusingcollecteddataandwhatisalreadyknown.Use:

Thisactivitywouldmostlikelybeappropriateattheoutsetofascienceclass.StudentsaresplitintosmallgroupsandgivenfourUPClabelsthathavebeenseparatedfromtheirproduct(theauthorsofthearticleusefourdifferentcereals,twoofwhichareQuakerbrand).Studentsareaskedtofindasmanypatternsaspossible.Aftertimeforsmallgroupdiscussion,theinstructorhelpstheentireclasstosynthesizetheirfindings.TheteacherexplicitlydescribesthepatternsseenfromtheUPClabelsasobservation.Thegroupsthendevelophypothesesaboutthemeaningsofthepatterns.TheinstructorpresentsthesmallgroupswiththeproductsattachedtotheUPC’sthatmaydisprovetheoldhypothesesandresultinnewhypotheses.Theclass’hypothesesthenarerevised.Theinstructorhelpsstudentstodirectlyreflectonknowledgedevelopmentfromcollecteddataandwhatisalreadyknownbyaskingthemwhatwouldberequiredtodisprovetheirhypotheses.Finally,theinstructorsgivesthesmallgroupsunmarkedUPC’s,andasksstudentstodeveloppredictionsfortheunmarkedUPC’sfortheproductstowhichtheybelong.Theinstructorexplicitlydescribestheprocessofapplyingobservedpatternstoas‐of‐yetunobservedphenomenaasinference.

Materials:Thefollowingmaterialsareneededpersmallgroupof3‐5students:

‐ UPCbarcodes(eitherfromvariousgroupingsofsimilarproductsorphotocopiedoutofthejournalarticle.)‐ RightandleftsidecodesforUPC(photocopiedoutofthejournalarticleorfoundonline).‐ Whiteboards/placetodisplaygroupinformation.

Modifications:

‐ Thejournalarticleusesparticularbrandcereals,butanybrandcouldbeusedforthesepurposes.Iffoodproductsarenotavailable,UPClabelsfromtextbookscouldworkjustaswell.

‐ Foryoungerstudents,numberorcolorpatternsrepresentingUPClabelscouldbeused.Apreliminaryactivitycouldbetosimplydecodethelabels,andthenlookforpatternsinthedata.

‐ Forthevisuallyimpaired,insteadofdecodingwithnumbers,theUPClabelscouldbetranslatedintoBraille.

Title:“Oops,IDidItAgain:ErrorsinMeasurement”ContentArea:

‐ Measurementanderror‐ KnowledgeofInquiry

o Allscientistsperformingthesameproceduremaynotgetthesameresults.Source:Jones,M.G.,Taylor,A.R.,&Falvo,M.R.(2009).Chapter3:Oops,Ididitagain:ErrorsinMeasurement.ExcerptpublishedinNSTAReports(2009),24.TargetGrade/CourseLevel:5‐8/PhysicalScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea:Studentsareaskedtomakebasicmeasurements.Aftersharingtheirdatawiththeclass,studentscomparetheirdatabyreflectingontheircollectionproceduresandpossiblesourcesoferror.Inalllikelihood,studentswhofollowedthesameproceduremaynotgetthesameresults.Use:Studentsaresplitintosmallgroupsof3‐5students.Thegroupisgivenonethermometerandsimplyaskedtomeasurethetemperatureoftheroomandtoreporttheirdatatotheteacheraftertheyaredone.Theteachercollectsthedataanddisplaysitfortheclasstosee.Theteacherpromptsadiscussionaboutanydifferencesobservedbetweenthedata,andasksthesmallgroupstocomeupwithpossiblereasonsforthedifferences.Ifstudentsperformedsignificantlydifferentprocedures,thestudentsareaskedtocollaborateandcollectmoredatausingthesameprocedure.Still,dataisveryunlikelytobetotallyconsistent,andtheteacherexplicitlyhelpsstudentstoseethatscientistsperformingthesameproceduremaynotgetthesameresultsasaresultofunforeseendifferences.Sometimesthisisaresultoferror,butoftenitisaresultofdifferingcircumstancesunknowntotheresearcher.Materials:Eachgroupof3‐5studentswillneedthefollowing:

‐ 1thermometer‐ 1metricmeasuringtapeormeterstick‐ Balanceformeasuringmass‐ Shoebox‐ Egg(hard‐boiled)‐ Yarn

Modifications:

‐ Almostanyformofmeasurementcouldbesubstitutedforthisactivity.Studentscouldbeaskedtomeasuretheheightoftheirdesk,forexample.

‐ Studentscanlearnaboutprecisionevenwithout“formal”measuringinstruments.Studentsmaybeaskedtomeasureobjectsintermsofthelengthsofpopsiclesticksorpaperclips.

‐ Tomakethisactivityabitmoredifficultandtoincludeotherpossiblevariablesinthesituation,highschoolstudentsmightbeaskedtomeasuretheoutdoortemperature.Studentswillbeconfrontedwithproblemssuchas,“DoIputthethermometerinthesunorintheshade?Howhighoffofthegroundshoulditbe?ShouldIshielditfromwind?”

Title:KinokiFootPadCommercial(AsSeenonTV)ContentArea:

‐ AspectsofNatureofScienceo EmpiricallyBased

Source:KinokiFootPadcommercial.CanYouFindtheBS?Retrieved12October2009fromYouTube.com<<http://www.youtube.com/watch?v=exmEGrNqgcA>>.TargetGrade/CourseLevel:6‐12/ScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentsobserveabriefcommercialaboutKinokiFootPadsanddiscussthereasonablenessofthescientificclaimsbasedonevidenceprovided.Studentswilldeterminethatbecausescienceisempiricallybased,acriticalthinkermightchallengesomeoftheclaimsonthecommercial.Use:Theteacherplaysthecommercialonce,andthenasksthestudentstodiscusstheirgeneralimpressionwithregardtothecommercial(Aretheyconvinced?Wouldtheybuytheproduct?Whynorwhynot?)Theteacherthenplaysthecommercialasecondtime,andasksthestudentstolistalloftheclaimsmadebythecommercial.Theteacherdirectsadiscussionbyexplicitlystatingthat“scienceisempirically‐based,”meaningthatitreliesuponevidence.Thestudentsthenwatchthecommercialathirdtime,andmakenoteofthe“evidence”providedonthecommercial,andjudgetheevidencewithregardtocredibility.Finally,thestudentsareaskedtorespondtothequestion,“DotheclaimsmadebytheKinokiFootPadadvertisersrelyonlegitimatescience?Whyorwhynot?”Materials:Theclassneedsthefollowing:

‐ Internetaccess‐ Laptopcomputer‐ LCDprojector

Modifications:

‐ Ifinternetaccessisproblematic,aVHSorDVDcouldbeusedtopre‐recordthecommercial.‐ Solongastheofficialwebsitestillexists,studentscouldalsoperformaweb‐questtodotheirownresearch

regardingclaimsmadeaboutKinokifootpadsoranother“scam”product.‐ Note:ThetitleforfindingthecommercialonYouTubeiscalled“CanyouFindtheBS.”Teachersmaywantto

onlyprojectthevideoonceitisinfull‐screenmodesothatthetitleisnotviewedbythestudents.

Title:“Sun”MagazineContentArea:

‐ KnowledgeofInquiryo Scientificdataarenotthesameasscientificevidence.

Source:“Sun”Magazine.Availableinmostgrocerystoresinthecheck‐outaisle.TargetGrade/CourseLevel:9‐12/ScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:Studentschooseanarticlefromthe“Sun”magazineandcomparedataandclaimsofscientificevidencebytheauthors.Studentsshouldidentifydataasquantitativeorqualitativemeasurements,andevidenceasinterpretationsimposedbyscientists.Use:Theteacherplacesamagazineforeachsmallgroupbeforetheycomeintotheclassroom.Theteachershouldallowthesmallgroupstobrowsethroughthemagazineanddiscussthecontents.Studentsshouldbeencouragedtofindwhattheyviewasthemostinterestingarticle–thearticlemustcontainsomeformofdataandaclaimaboutthatdata.Intheirsmallgroups,studentsshoulduseawhiteboardtodisplay(1)oneortwoclaimsfromthearticle,(2)examplesoftherawdata,and(3)anexampleofthe“evidence”providedbytheauthorssupportingtheirclaims.Studentsshouldpresentthesewhiteboardstotheclass,andtheteachercanengagepresentingstudentsandthe“audience”withthefollowingquestions:“Whatdatadidtheauthorsprovide?”“Whatevidencedidtheauthorsprovidetosupporttheirclaim?”“Whatisthedifferencebetweenthedataandtheevidence?”“Dothestatementsregardingevidenceactuallyreflectthenatureofthedata?”“Whyorwhynot?”Thiscanbeextendedevenfurthertodeterminewhethertheresearchclaimsactuallycorrespondtotheevidence.Materials:Foreachsmallgroupoftwotofourstudents:

‐ Onecopyof“Sun”Modifications:

‐ Anynon‐reputablemagazinemaybeusedinplaceof“Sun”magazine.‐ Forlowerlevelstudents,specificarticlesmaybechoseninsteadofallowing

studentstochoosefromthemagazine.However,theopportunityforstudentstosearchfor“data”and“evidence”isquitevaluable!

‐ Crediblearticlesmayalsobeusedforthesamepurpose(i.e.researcharticles).

Title:WomanoftheEnlightenment:EmilieduChateletContentArea:

‐ KineticEnergy‐ AspectsofNatureofScience

o SociallyandCulturallyEmbeddedSource:Hakim,J.(2006).StoryofScience:NewtonattheCenter.SmithsonianPress./PBS’s“Einstein’sBigidea”videoclip.TargetGrade/CourseLevel:11‐12/PhysicsStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES History and Nature of Science: Science as a human endeavor. Nature of scientific knowledge. Historical perspectives. Idea:StudentsreadachapterfromStoryofScience:NewtonattheCenterandwatchavideoclip(“2”isforsquared)fromPBS’“Einstein’sBigIdea”andthenreflectuponhowsocietyandcultureinfluencedthedevelopmentofscientificunderstanding.Use:Studentsreadthechapterontheirown,followedbythevideoclip.Theyarethenaskedtorespondindividually,andtheningroups,tothefollowingquestions:

Emiliewasnotwidelyregardedpubliclybyscientistsuntilonlyabout20yearsago.“WhatsocialandculturalfactorspreventedEmiliefrombeingabletosuccessfullysharewhatshelearnedaboutenergy?”

Exampleanswersmayincludethefollowing: FemalesinFranceduringhercenturywerenotacceptedaslegitimatescientists–theyweren’t allowedintosome“scienceparlors”ororganizations. EmiliechallengedNewton,whowasperceivedbymostreputablescientiststobe“god‐like”and irrefutable.Thisdiscussionshouldbeextendedtoevenmoderndayinfluences: “IfEmiliewerealivetoday,howwouldsocietyandculturepossiblyhaveinfluencedherwork?Explainwhy.” “Whatkindofsocialandculturalinfluences(notjustgender)doyouthinkarepresenttodayinscience?” “Issocialandculturalembeddednessagoodorabadthing,inyourview?Elaborate.”Materials:

DVD–PBS“Einstein’sBigIdea”PhotocopyofChapter22fromNewtonattheCenterforeachstudent.

Modifications:

‐ ThisactivitycanbeaccomplishedwitheithertheDVDorthereading–Iprefertodobothbecauseitseemsto“enrich”thehistoricalperspectiveofthestudents.

‐ Manyscientistsinhistoryhavebeenoverlookedordisregarded–studentscouldalternativelyreadascienceautobiography.

Title:BarbieBungeeJumpingLabContentArea:

‐ NatureofScienceo ObservationversusInference

‐ Physics/Matho Developingmathematicalmodelsforasetofdata.

Source:IllinoisStateUniversityGK12NSFGrantFellows,summerworkshop2005TargetGrade/CourseLevel:11‐12/PhysicsStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea:Studentsperformalaboratoryactivityinwhichtheycollectdata(throughobservationofBarbiefalling0to1meterfromabungeecordofrubberbands)andmakepredictions(inferences)abouthowmanyrubberbandswouldbeneededtoreleaseBarbiefromthetopofastairwellanddropBarbieasclosetotheflooraspossiblewithouthittingherhead.Thestudentsusethisactivitytoreflectuponwhatpartsoftheirexperimentationincludedobservationsandinferences.Use:ThestudentsareaskedtocompletetheBarbieBungeeJumpinglaboratoryactivity.Followingtheactivity,studentsareaskedtoreflectupontwoquestions.

‐ Whatpartsoftheactivityincludedobservations?o Whatobservationsdidyouthinkwereimportant?o Howdidyourecordyourobservations?(Datatable,chart,graph,etc.)

‐ Whatpartsoftheactivityincludedinferences?o Whatwasyourprediction?o Howdidyoumakeyourprediction?o Howsurewereyouofyourprediction?

Afterreflectingupontheirspecificlaboratoryexperience,theteachercouldgeneralizethediscussion.‐ Whatkindsofobservationsdoscientistsmake?‐ Whatisrequiredforsomethingtobeconsideredanobservation?‐ Areallobservations“correct”?‐ Howdoscientistsknowthatwhattheyareobservingreallyreflectsreality?‐ Whatkindsofinferencesdoscientistsmake?‐ Howisinferencedifferentfrom“faith,”inthereligioussense?‐ Howcertainarescientistsabouttheirowninferences?‐ Whatmightaffectthevalidityofaninference?

Materials:Foreachpairofstudents:

‐ 50identicalrubberbands Calculator‐ Barbie,GI‐Joe,orsmalldoll. Straight‐edge‐ Meterstick Pencil‐ Graphpaper

Modifications:

‐ Forgreatercomplexity,studentscanbegivenacombinationofdifferenttypesofrubberbands.‐ Anylaboratoryactivityusingpredictionscanbeusedinthesameway.

Title:TableTalkContentArea:

‐ NatureofScienceo Tentativeness

‐ KnowledgeofInquiryo Thereisnosinglescientificmethod

Source:PersonalCommunicationwithThomasHolbrook(myhighschoolphysicsteacher).TargetGrade/CourseLevel:11–12/ScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. Idea:Studentsgohomeandexplicitlydiscusswiththeirparentsaboutthetentativenatureofscienceandhowthereisnosinglescientificmethod.Studentsandtheirparentsmustcomeupwithoneortwoclearexampleofeachoftheseaspectsofscience.Use:Followingaunitonthenatureofscienceandknowledgeofscientificinquiry,studentsaregivenasmallsheetwithtwopromptsabouttentativenessandscientificmethods.Thestudentsaretodiscusswiththeirparentsthefollowingtwoquestions:“Whatisoneexampleofhowsciencechanges?”and“Givetwoexamplesofscientificdiscoveries,andexplainhowtheirmethodsofdiscoveryweredifferent.”Thestudentsmustwriteaparagraphresponsetoeachquestion,andaparentsignaturemustbeobtainedtoensurethatthestudentsactuallydiscussedthetopics.Theteacherwillevaluatetheresponsesbythestudenttodetermineiftheytrulyunderstandtheconcepts–or,perhapsstudents,parents,andteachersdisagree!Ifso,follow‐uplessonscanbeusedtoprovideevenmoreexamplesofthenatureofscienceandscienceinquiry.Materials:

‐ TableTalkpromptsheet‐ Paper‐ Pencil‐

Modifications:‐ Forstudentswhodonotlivewithparents,aguardian,teacher,oranotherresponsibleadult(age21orolder!)

maybesubstituted.‐ Alternativequestionsaboutanyoftheaspectsofnatureofscienceorknowledgeofinquirymaybesubstituted

forwhateverismostappropriatetotheclassroom.‐ Studentsmaybegivenanarticleortalkingpointaboutaspecificaspectsofscience(i.e.theatomicmodel)if

thereisconcernthattheparentorstudentmaybeunabletodiscusstheideasindependently.(Fortunately,Ihaverunthisactivitybefore,andhavefoundthatmostofmyparentsaremorethancompetentwhenitcomestodiscussingscience!)

Title:EvolutionofPhysicsContentArea:

‐ Physicso Natureoflight

‐ AspectsofNatureofScienceo Tentativenesso Functionsandrelationshipsoftheoryandlaw.

Source:“TheDeclineoftheMechanicalView”chapterfromEinstein,A.(1967).Theevolutionofphysics.Touchstone:NewYork.TargetGrade/CourseLevel:11‐12/PhysicsStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentsreadachapterontheevolutionofthemodelsoflightfromEinstein’sEvolutionofPhysics.Studentscommentonhowtheconceptionoflighthasbeenandstillistentative.Studentscompleteanotessheetandlabelappropriateinformationfromthetextastheoryorlaw.Use:Studentsshouldbeintroducedtolightandtraditionalbeliefsaboutitsmake‐up.AristotlethroughNewtonbelievedthatlightmustbea“particle”ofsomesort.However,ascanbeeasilydemonstratedintheclassroom,lightdisplayspropertiesofbothparticlesandwaves(i.e.interferencepatterns,polarization,straight‐linetravel,etc.).AfteradiscussionabouthowtheseveryingrainedAristotelianbeliefswerechallengedandeventuallychanged,demonstratingthetentativenatureofscience,studentsread“TheDeclineoftheMechanicalView”fromTheEvolutionofPhysics.Aftercompletingtheactivity,studentsfilloutthe“CompetingTheoriesofLight”worksheetandseeksupportingevidenceforeachtheoryoflight.Studentsdiscusswhichaspectsoftheirobservationsconstitutelaws.(StudentsshouldbeabletocomeupwiththeLawofReflectionandLawofRefractionasprimeexamples).Studentsshouldbeexplicitlygiventhedefinitionofalawasadescriptionoftherelationshipbetweentwovariables,withtheoriesandtheexplanationfortherelationship.Materials:Foreachstudentthefollowingmaterialsareneeded:

‐ Copyof“DeclineoftheMechanicalView”chapterfromEvolutionofPhysics.‐ “ComparisonofTheoriesofLight”document‐ Demonstrationmaterialsforeachofthepiecesof“evidence”aslistedbyEinstein(optional).Seetheinquiry

lessonplanformoreinformationaboutthis.Modifications:

‐ Studentsmayreadtheexcerptsinclass(oroutsideofclass)dependingupontimeconstraints.‐ Excerptsmaybeenlargedorreadaloudforstudentswhohavevisualdifficultiesorprefertolearnaudially.

(Partsoftheexcerptmayevenberole‐played).‐ Insteadofreadingthearticle,theteachermaydemonstrateeachoftheobservationsscientistshavemade

aboutlight,or,alternatively,studentsmaymaketheirobservationsinsmallgroupsviaastationslab.

Title:PendulumLabContentArea:

‐ Physicso Oscillatorymotion

‐ KnowledgeofInquiryo Allscientistsperformingthesameproceduresdonotalwaysgetthesameresults.

Source:ChicagoITQCohort3:ModelingMethodofInstruction.HeldatDominicanUniversityinJune2007.TargetGrade/CourseLevel:Physics/11th–12thgradeStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea:Studentsperformalaboratoryexperimenttodeterminetherelationshipbetweenthelengthofapendulumandthetimeforonecycle.Eachgroupisgivenaspecificrangeinwhichtowork.Studentswillseethatalthoughtheyhadthesamequestionaslikelyusedasimilarprocedure,theresultingdatamaynotgetthesameresultsbecausetheymayonlybeviewingasmallportionofthewholerangeofpossibledata.Use:Theteacherdemonstratesaswingingpendulum,andpromptsstudentstobrainstormthepossiblevariablesthatmayaccountforthelengthoftimeofafullcycleofthependulum.Afterstudentshavedeterminedthatonlylengthsignificantlyaffectsthecycletime,theteacherasksstudentstodevelopagraphshowingtherelationshipbetweenthelengthandthetimeofafullcycle.Halfoftheclassisaskedtostudyonlylengthsbetween5cmand30cm,andtheotherhalfisaskedtostudylengthsbetween30cmand60m.Studentscanplotageneralsketchoftheirgraphsonawhiteboardandpresenttheirfindingstothegroup.Studentswhoworkedwithinthe5cmto30cmrangewilldeterminethattherelationshipisnon‐linear,withthegreatestchangeinthetimeofonecycleoccurringattheshortestlengths.Thegroupsworkingbetween30cmand60cmmaydeterminetherelationshiptobealmostorentirelylinear.Duringthewhiteboardingsession,studentsshouldalsosharetheirprocedures.Inevitably,mostofthegroupswillhavefollowedthesameprocedure,yettheclassisnotlikelytocometoaconsensus.Theteachershoulddrawthediscussiontoaclose,askingstudentstoreflectonthereasonswhyscientistsperformingthesameproceduresdonotalwaysgetthesameresults.Inthiscase,thiswasaresultoftherangeofdata(andshouldleadintoadiscussionabouttheimportanceoftestingawiderangeofdata),butitcanalsobearesultoflackofprecisionordifferinginterpretationsofthesamedata.Materials:Studentsshouldworkinsmallgroupsofthreetofourstudents.Eachsmallgroupwillneedthefollowing:

‐ Ringstandwithclamp(orsturdyplacetohangpendulum).‐ String‐ Scissors‐ Pendulumbob‐ Electronictimer‐ Meterstick

Modifications:

‐ Ifpendulumbobsarenotavailable,setsofwasherscanbetiedontotheendofthestring.‐ Anykindoflaboratoryactivityinwhichthedataisnotlinearcanbesubstitutedforthislab(i.e.inverse,

logarithmic,exponential).‐ Insteadoflookingattherangeoftheexperiment,studentscouldbeaskedtocollectnomorethantwodata

points–studentsquicklyidentifythatthisisinsufficientdata.

Title:Galileo’sThermometerContentArea:

‐ Chemistry/Physicso Density,Buoyancy,Thermodynamics

‐ KnowledgeofInquiryo Explanationsaredevelopedfromacombinationofcollecteddataandwhatisalreadyknown.

Source:RebeccaVieyraTargetGrade/CourseLevel:3rd–12th/GeneralScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentsobserveaGalileo’sThermometerandthechangesthatoccurinitwhenmovedfromacoldtoawarmenvironment,orviceversa.Studentsprovideexamplesofwhattheyalreadyknowaboutfloatingandsinkingobjects,andtheeffectsoftemperatureonliquids.Studentsexperimentwithdifferenttemperaturestocollectdatatodeterminetherelationshipbetweentemperatureandthenumberoffloatingbulbs.Use:

TheteacherbeginsclassbyremovingtheGalileo’sThermometerfromacoolerfilledwithice–studentsshouldnotseethis!Astheclassgoeson,studentsareaskedtomakeobservationsaboutwhatisoccurringwiththebulbsinsideofthethermometer.Studentsareaskedtoexplainpossibilitiesforthebulbstobeginsinkingorfloatingbygivingexamplesofexperiencestheyhavehadwithsinkingandfloating.Studentsmaylistexperiencessuchasbeinginaboat,feelingbuoyantinwater,havingdenseobjectssinkandlessdenseobjectsfloat(whattheyalreadyknow).TheteachermayopttouseaKWLchartatthispoint. StudentsshouldbeencouragetofeeltheGalileo’sThermometerandlookcloselyatthebulbs.Seeingthe“degree”symbolonthebulbsandfeelinghowcoolitis,studentsshouldcometotheconclusionthatthebulbssinkingorfloatingareafunctionoftemperature.Studentsmaycollectdatabyreturningthethermometertothecooler,orplacingitinabeakerfilledwithluke‐warmwater.(Caution:Thewatershouldnotbeabove100degreesFahrenheit!)ObservationsmayberecordedintheKWLchart. Oncethetemperaturedependenceisdetermined,studentsshouldlistontheirKWLchartwhattheyknowaboutmoleculesofwarmandcoolfluids,andprovideexamples(hotairrises,etc.)Thisshouldbefollowedbyanexplicitdiscussionaboutsciencerarelybeingdoneinisolationofotherideas,betheypersonalexperiencesorresearchcompletedbyotherscientists.Studentsshouldbeaskedtoprovideexamplesofthis–almostallscientistsbeforetheScientificRevolutionreliedsomewhatupontheobservationsofAristotle,andmanyscientistsaftertherevolutionbasedtheirworkoffoftheexperimentationofNewton.InthewordsofNewtonhimself,“nanosgigantumhumerisinsidentes”–eventhegreatestofscientificscholarsonlygowheretheywerebystandingontheshouldersofgiants.Materials:

‐ Galileo’sThermometer‐ Beaker‐ Water‐ Hotplate‐ Ice‐ Thermometer(alcohol)‐ Balloon

‐ CoolerModifications:

‐ InsteadofusingaGalileo’sThermometer,acommon“handboiler”mayalsobeused,anddemonstratessimilarpropertiesabouttheexpansionoffluidsasaresultofanincreaseintemperature.

‐ InsteadofusingaGalileo’sThermometer,aCartesiandivermayalsobeused,anddemonstratessimilarpropertiesoffloatingandsinkingasaresultofchangesinoveralldensityofobjectsinafluid.

‐ TheGalileo’sThermometermayalternativelybeplacedinarefrigeratorandallowedtowarmupintheclassroomastheclassgoeson.Itmayalsobeplacedoutsideaclassroomwindowandviewedbythestudentsasitchangestemperature.

Title:FiltersActivityContentArea:

‐ Physicso Absorptionandtransmissionoflight

‐ NatureofScienceo ObservationversusInference

Source:Riendau,D.WorkshopattheChicagoSectionoftheAmericanAssociationofPhysicsTeachersSpring2009conference.CrystalLakeSouthHighSchool.TargetGrade/CourseLevel:9th–12th/PhysicsStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentslookatasetofprojectedcoloreddotsonaPowerPointslide,andareaskedtopredicthowthecolorswilllookdifferentwhenobservedthroughafilterheldinfrontoftheireyes.Studentsarethenaskedtoinferthereasonwhythecolorsappearastheydothroughthefilters.Theteacherprovidesadefinitionofobservationsandinferences,andasksthestudentstoreflectonthestrengthofobservationsandinferencesasscientificevidence.Use: TheteachercreatesaPowerPointslidewithawhitebackgroundandthreelargedots,eachinred,green,andblue(matchingthefiltercolorsascloselyaspossible).Thestudentsareaskedtomakeobservationsofthecolors.Theteacherasksthestudentsifalloftheirobservationsarethesame–thismayleadintoauniquediscussionabouthow“yourblue”maynotbeperceivedinexactlythesamewayas“myblue.”Thestudentsthenpredicthoweachofthecolorswillchangewhenviewedthrougharedfilter,andthenprovideatentativehypothesisaboutwhytheythinkthecoloreddotsmightlookdifferently.Afterstudentsmaketheirobservations,theysharetheirinferencesaboutwhatishappeningtolightasitpassesthroughafilter.Manystudentswillinferthatwhitelightisgetting“colored”or“mixed”withthecolorofthefilter.Otherstudentswillinferthatthefilteronlyallowsitsowncolorthrough,whileblockingorabsorbingtheothercolors.Studentswillperformthesameobservationswithblueandgreenfilters,andthenwithfiltersthatletthroughthesecondarycolorsoflight.Studentsshouldrevisetheirinferencesbasedontheirnewobservations.Followingthisactivity,theteachershouldprovideanexplicitdefinitionofobservationandinferencebyaskingthefollowing: Whatwereyourobservations?Didyouallagree? Isiteverpossiblethatscientistsdonotmakethesameobservationsofthesamephenomenon? Whatwereyourinferencesgivenyourobservations?Didyouallagree? Isiteverpossiblethatscientistsdonotmakethesameinferencesdespitesimilarobservations?Materials:

‐ PPTPresentation“ColorsActivity”‐ Worksheet“ColorsActivity”‐ Coloredpencils,markers,orcrayons‐ Coloredfilters(red,blue,green,magenta,cyan,yellow)

Modifications:

‐ IfanLCDprojectorisnotavailabletopresentthePowerPoint,considerusingacolorful,brightobject.TheflagofSouthAfricaworksverywell,asitincludesalloftheprimarycolorsoflightaswellasblack,yellow,andwhite.

Title:ANewTwiston“MysteryBoxes”ContentArea:

‐ NatureofScienceo ObservationversusInference

‐ KnowledgeofInquiryo Thereisnosinglescientificmethod.

Source:Rau,G.(2009).Anewtwiston“mysteryboxes.”Thescienceteacher.No.11,30‐35.TargetGrade/CourseLevel:5th–12th/GeneralScienceStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:Studentsusealloftheirsensestoidentifyvariousobjectsinsideof“mysteryboxes”intowhichstudentscannotinitiallysee.Studentsrecordtheirobservations(anythingtheycansense),aswellastheirinferences(themeaningtheymakeoftheirobservations).Studentswillidentifythisactivityasaninvestigation,anddiscussthatitisasvaluableapartofscienceasexperimentation,becausescientistsdonotallfollowa“scientificmethod”tolearnaboutthenaturalworld.Use: Provideeachsmallgroupof3‐4studentswithtwomysteryboxes(oroneboxwithadivider).Studentsmayshaketheboxesandplacetheirhandsintoasmallopeningintheboxestofeelorsmelltheitem.(Caution:Donotplaceanyitemsintheboxthataresharpormaypotentiallyscarestudents,suchasdeadinsects.Bewareofobjectsthatmaybeallergen‐producing).Askstudentstoindividuallymakealistofallobservations–explicitlystateobservationsarethingsthatcanbesensedwithvision,touch,smell,taste(notinthelaboratory!),orheard.Beneaththelistofobservations,thestudentshouldmakeaninference–astatementthatmakesmeaningoutoftheobservations.Forexample,observationsforapineconemightinclude“bristly,”“hard,”“spiny,”and“rough.”Aninferencewouldbethefollowing:“Ithinkthatthemysteryitemisatypeofpinecone.”Studentsshouldbeaskedtocomparetheirobservations,andremoveanyitemsfromthelistthatarenotsimpleobservations.Thestudentsmaythenopentheboxandcontinuetomakevisualobservationsandrefinetheirinference.Forapinecone,thismightinclude“brown,”“hasgrooves,”etc. Thisactivityshouldbefollowedupwithaquestionaboutiftheactivitywas“scientific.”Undoubtedly,moststudentswillsayyes.Inbiology,identificationandcategorizationisalargecomponentofthebodyofknowledge.Theteachershouldalsoaskstudentsifthiswasanexperiment.Ifstudentssaythatitisanexperiment,theteachershouldfollowupthisactivitywithatrueexperimentthatincludesmanipulationofvariables,tohelpdemonstratethedifference.Theteachershouldhelpstudentstorecognizethatthemysteryboxactivityisaninvestigationbecauseitdidnotdealwithlookingatcause‐and‐effectrelationships.Scientistscanstudytheworldinmanyways–theydonotalluseasinglescientificmethod.Materials:Eachsmallgroupof3‐4studentswillneedthefollowing:

‐ Medium‐sizedboxwithadividerortwosmallboxes(withaholecutinthetoplargeenoughtoinsertahand).‐ Paperorfabric(tocovertheholeinthebox).‐ Twoitemsperbox–preferably“natural”artifactsthathaveavarietyofsmells,shapes,andtextures.‐ Paperandpencil.‐ Rubric(fromTheScienceTeacherarticle).

Modifications:‐ Thisactivityisidealforstudentswhohavevisualdifficulties–considerchoosingitemswithmoreobvious

aromasandtextures.‐ ‐ Speciallymadeboxesarenotabsolutelynecessary–thisactivitycanbeaccomplishedjustaseasilywithblack

plasticorfabricbags.‐ Boxesaren’tevennecessary–observationsandinferencescanalsobemadeonlyonvisualevidence.

Title:AtomicBombScientistandGovernmentPanelContentArea:

‐ Physicso Radioactivity

‐ NatureofScienceo Sociallyandculturallyembedded

Source:Dannen,G.(9August2003).AtomicBomb:Decision.Retrieved8November2009from <<http://www.dannen.com/decision/index.html>>.TargetGrade/CourseLevel:PhysicsStandard:NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentsdosomepreliminaryresearchtounderstandthehistoricalandpoliticalatmospheresurroundingthedevelopinganduseoftheatomicbombonHiroshima.Studentswillholdapaneldiscussionviarole‐playingofmajorscientistsandgovernmentofficialsinvolvedinthedecisionmakingsurroundingtheManhattanproject.Throughthisactivity,studentsrecognizethatsciencecanbehelpedorhinderedbythesocialandculturalatmosphereofacountry.Use:

Thisactivityshouldbecarriedoutonlyafteranintroductiontoionizingradiationanditseffects–moviessuchasTheManhattanProjectorBarefootGen(Caution:Thisisaverygraphicmanga‐stylemovie)doasuperbjobofshowingboththeculturalclimateintheUnitedStatesandJapanaswellasthebiologyeffects.Studentswillrevieworiginalsourcedocuments(includingsomethen‐confidentialgovernmentpapers)fromtheabovelistedsourcelinktoresearchthevaryingpositionsofscientistsandgovernmentofficialsregardingtheethicsandlegalityinvolvedintheresearchanduseofthebomb.

Followingsomepreliminaryresearch,studentsshouldbeassignedvariousroles,suchasGeneralGroves,PresidentTruman,Oppenheimer,Szilard,Fermi,Compton,Lawrence,etc.Studentsshouldresearchthepositionoftheirchosencharacter,thenre‐enactacommitteemeetingatwhichtheydecidethefateofthebomb.Amoderator(teacher)shouldbepresenttofacilitatethediscussion.

Followingtheactivity,theteachershouldde‐briefthestudentswiththefollowingdiscussionquestions:‐ WhatkindsofglobalornationalinfluencesencouragedthedevelopmentoftheManhattanProject?‐ Whatwerethe“winning”argumentsfortheuseoftheatomicbombinJapan?Whosestancedidtheyreflect?‐ Whatwastheglobaleffectofusingtheatomicbombimmediatelyafteritsuse?‐ Whatwastheglobaleffectofusingtheatomicbombontoday’spolitics?‐ Whataresomeotherexamplesinscienceinwhichsocietyandculturehaveaffectedtheoutcomeofascientific

projectorscientificresearch?Materials:Studentsmustcompleteon‐lineresearchinpreparationforthepanel:

‐ Computers‐ InternetAccess‐ AtomicBombWebQuest

Modifications:

‐ Forclassesthatdonothaveinternetaccess,theoriginalsourcedocumentsmaybeprintedoutinhardcopyforstudentstouseandreturn.

‐ Insteadofre‐enactinganentirecommitteemeeting,studentsmaysimplebeaskedtoreadandreflectuponthearticlesandfollow‐upquestionsinanessay.

Title:Emilie’sKineticEnergyExperimentContentArea:

‐ Physicso KineticEnergyo Kinematics

‐ KnowledgeofInquiryo Researchconclusionsmustbeconsistentwiththedatacollected.

Source:CenterforAppliedResearchinEducation.(1994).Hands‐onphysicsactivitieswithreal‐lifeapplications.TargetGrade/CourseLevel:11th–12th/PhysicsStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. Idea:Inthisexperiment,studentsmodifythespeedofaballbearingasitcollideswithclay.Bygraphingthedepthofthe“crater”(energy)versusthefinalvelocityoftheball,studentsseethatNewton’sclaimswereoverthrownbecausehisconclusionswerenotconsistentwiththedata,andthisconsistencyisfundamentalinscience.Use:

Newtonservedasanauthorityfigureformanyscientists,whodidnotdaretocontradicthistheoreticalorexperimentalwork.Newtonbelievedthatkineticenergy(visviva)wasproportionaltothevelocityofafallingobject.TheDutchs’GravesandeaswellasFrenchduChateletexperimentallyfoundthatNewton’sconclusionswereinaccurate.

Studentsaregivenasingleball‐bearingandaskedtodetermineifNewton’sstatementaboutkineticenergybeingdirectlyproportionaltovelocityiscorrect.Studentsshouldbeabletocalculatethefinalvelocityofdroppedballbearingsusingknowledgefromkinematics.Aftertheballisdroppedintoclay,theenergymakingthehole(“workdone”bytheball)canbemeasuredinthedropletsofsoapwaterittakestofillitup(thesoapdecreasesthesurfacetension).Thedataforenergyandfinalvelocitycanbeplottedonagraph.Studentswillseethatthecurveisparabolic,notlinear,aspredictedbyNewton.

Theteachershouldconvenetheclasstocomparedata.Theteachershouldaskthestudentswhattodo–shouldNewton’sclaimremainauthoritativegiventheevidence?Studentsshouldresoundinglyanswer“no,”andattempttocreateanewstatementthatisconsistentwiththedata.Theteachershouldaddresstheclasswiththefollowingquestions:

‐ Havetherebeenothercasesinwhichconclusionswerenotconsistentwiththedata?‐ Whymightascientistmakeconclusionsthatarenotconsistentwiththedata?(Thisisagreattimetodiscuss

theconceptofscientificethics!)Materials:Thefollowingmaterialsareneededforeachlabgroupof3‐4students:

‐ Ball‐bearingsofvarioussizes(from10gto200g)‐ Softmodelingclay–non‐porous,non‐drying‐ Meterstick‐ Eyedropper‐ Beaker/cup‐ Soapwater

Modifications:

‐ Foryoungerstudents,thefinalvelocitiesbeforeimpactcanbepre‐calculatedandalreadyplacedintoacolumnforthestudents–theycanjustbeinstructedtodroptheballsfromapre‐determinedheight.

‐ Foryoungerstudents,onlytwotrialsarenecessary,andnographingisneeded–justdroptwoballs,withoneattwicethefinalspeedastheother.Youngstudentshouldeasilybeabletoseethattheballwithtwicethespeedrequiredfourtimesasmanywaterdropletstofillitup.

‐ Ifmodelingclayisnotavailable,useCrisco,Manteca,oranotherformofsoftlard.‐ Iftheclayisporousbutsoft,considercuttingtheclayandmeasuringthedepth,asopposedtofillingitwith

dropletsofwater.‐ Forolderstudents,afurtherexperimentcanbeaccomplished–performtheexperimentbymanipulatingthe

massoftheballbearing,whilekeepingthefinalvelocityconstant.Studentswillseealinearrelationship.Asimpleapplicationofconservationduetoenergyresultsinthemodernderivedformulafortheenergyofmotion.

Title:BenjaminFranklinLettersaboutElectrostaticsContentArea:

‐ Physicso Electrostatics–capacitors.

‐ KnowledgeofInquiryo Inquiryproceduresareguidedbythequestionasked.

Source:Morse,R.“BenjaminFranklinasmyLabPartner.”WorkshoppresentedattheFebruary2009nationalconferenceoftheAmericanAssociationofPhysicsTeachers.Chicago,IL.TargetGrade/CourseLevel:Physics/PhysicalScience/8th–12thgradeStandard:ILSSTATE GOAL 11: Understand the processes of scientific inquiry and technological design to investigate questions, conduct experiments and solve problems. NSES Science as Inquiry: Abilities necessary to do science inquiry. Understandings about science inquiry. NSES History and Nature of Science: Nature of scientific knowledge. Idea:StudentsreadsimpleexcerptsfromletterswrittenbyBenjaminFranklintohisfriendsregardinghisexperimentsinelectrostatics.ThestudentsfollowtheexperimentsdescribedbyFranklin–eachexperimentclearlyproceedsfromthequestionposed.ThestudentsanalyzehowFranklinbuildsupontheearlyunderstandingsofelectricityusingacombinationofwhatwasknownpreviouslyandhisnewexperiments.Use:

Studentsshouldhavesomebasicfoundationalinteractionswithstaticelectricity.Atthispoint,alargeT‐chartshouldbeplacedintheclassroomthatwillremainuntiltheendofthelesson.TheT‐chartshouldhaveacolumnforwhatisknownandwhatwaslearnedfromeachconsecutiveactivity.Thewhatisknownshouldbefilledinwithanyintroductoryinformationthestudentsmayhave.Studentsbuildasmallcapacitorasinstructedinthereadingpacket.Thestudentsexperimentwithhowtoproperlychargeafilmcanistercapacitor(filledwithwater).Afterwards,theyobservetheeffectsofachargedcapacitor“hook”onapithball.AllobservationsshouldgointothewhatwaslearnedpartoftheT‐chart.

Studentswillbegivenalaboratory/readingpacket,“BenFranklinasMyLabPartner,”(canbefoundonlinefromRobertMorse’sresourcesattheTUFTSWrightCenterforScienceEducationhttp://www.tufts.edu/as/wright_center/personal_pages/bob_m/).Theteacherwillhelpleadthestudentsthroughtheintroductoryreadings.BenjaminFranklin’sinterestwaspiquedbythis“Leydenjar,”andproceededtoaskhimselfthefollowingquestion:“Whereisthechargestoredinacapacitor?”ThestudentsfollowthethinkingandproceedingquestionsfromBenjaminFranklintodiscoverthefollowing:“Isthechargeinthehook?”“Isthechargeinthewater?”“Isthechargeonthesurfaceofthebottle?”“Musttherebemetalonthesurfaceofthebottle?”Studentscompletetheaccompanyactivitiesforeachquestiontotestwherethechargeislocated.AllobservationsshouldbeincludedinthewhatwaslearnedsectionoftheT‐chart.Theteachershouldinitiateadebriefingdiscussiontofocusonhowthequestionsdirectlyproceededfromthequestionsposed,andthateventhoughFranklinwasingeniousinhisviews,thatheusedhisownpriorknowledgeofstatics(andLeyden’sworkwithcapacitorsfromEurope)alongwithhisnewexperimentstoresultinourmodernunderstandingsofscience.Materials:Studentsshouldworkinpairs.Eachpairofstudentswillneedthefollowingmaterials:

‐ Twofilmcanisterswithalid‐ Aluminumfoil‐ Glue‐ Largepaperclip‐ Twoemptycupswithwater

‐ Chargingrod(amberrodwithfur,glassrodwithsilk)‐ “BenjaminFranklinasmyLabPartner”laboratoryworksheetsandletterreadings.

Modifications:

‐ Iffilmcanistersareobsolete,twoplasticcupsstackedoneinsideoftheotherwillalsoserveasacapacitor.Theoutsidecupmustbelinedwithaluminumfoilontheoutsideandinside.Analuminum“tag”mustprotrudefromthemiddleofthecupstoallowforcharging.

‐ Ifcommercialchargingrodsareunavailable,PVCpipewithfauxfurfromafabricstoreworknearlyaswell.‐ Hairdryerscanbeusedifhumidityisslightlytoohigh.‐ Videosformakingthefilmcanistersandperformingpartoftheexperimentcanbefoundonlineattheabove

listedsource.