conservation of matter and chemical reactions - teachers in industry：物质和化学反应的教师行业的保护

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1、ConservationofMatterandChemicalReactionsUBDUnitPlanChrisLeverington11Stage1–DesiredResultsEstablishedGoalsWhatcontentstandardsandprogramgoalswilltheunitaddress?HS-PS1-2—Constructandreviseanexplanationfortheoutcomeofasimplechemicalreactionbasedontheoutermostelec

2、tronstatesofatoms,trendsintheperiodictable,andknowledgeofthepatternsofchemicalpropertiesHS-PS1-7—Usemathematicalrepresentationstosupporttheclaimthatatoms,andthereforemass,areconservedduringachemicalreaction.NGSSPractices1.PlanandCarryOutInvestigations2.Construc

3、tingExplanations3.AnalyzingandInterpretingData4.UsingMathandComputationalThinkingTransfer1.Thelawofconservationofmassappliestoallchemicalreactionsthatoccurintheuniverse.2.Chemicalreactions(elementalinteractions)followasetofknownruleswhentakingplace.3.Allmattert

4、hatisontheEarthhasalwaysbeenhere,itjustcyclesthroughdifferentforms.MeaningUnderstandings1.Theproductsofachemicalreactioncanbedeterminedbythevalenceelectronarrangementofthereactants.2.Chemicalreactionscanbemodeledinvariousways,butthegeneralpatternstaysthesame.3.

5、Matterisconstantlycyclingdifferentforms,butisnevercreatedordestroyed.EssentialQuestions1.Whathappenstomatterwhenitreactswithothermatter?2.Howdochemistsusetheformulaoftheproducttheydesiretodeterminewhatreactantstouse?3.Whathappenstothegasolineinyourcarwhenyougof

6、oradrive?AcquisitionStudentswillknow…1.Chemicalcompoundsformduetothearrangementofvalenceelectronsineachelement2.Inachemicalreactiontheatomsrearrange,butdonotchangecomposition.3.Mostchemicalreactionsfollowdistinctpatternsinproductformation(synthesis,decompositio

7、n,displacement,combustion,Redox)4.Matterisnotcreatedordestroyedinachemicalreaction,itonlychangesformStudentswillbeskilledat1.Planningandcarryingoutaninvestigation2.AnalyzingDatafrominvestigation3.Constructinganexplanationfromthedataincludingamathematicalreprese

8、ntationofsaiddata.4.Predictingtheoutcomesofchemicalreactions.ConservationofMatterandChemicalReactionsUBDUnitPlanChrisLeverington11Stage2-AssessmentsPerformanceTask(inGRASPSf