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1、NumberLevel2:NumberpatternsandrelationshipsCurriculumfocusNumbers,countingandnumerationAtthislevelstudentsdeveloptheirabilitytocountforwardsandbackwardsto1000andskip-countto100.Theyusevariousmaterialstorepresentgroupsof10andtodeveloptheconceptofplace-valueleadingtor
2、eading,writing,renamingandorderingnumbersuptothreedigits.Theyareintroducedtotheconceptoffractions,recognisingsimplefractionalpartsofbothobjectsandcollectionsofobjects.Theyuseafour-functioncalculatortoexplorecountingsequencesandtoconsolidateplace-valueconcepts.Keydes
3、criptors:countforwardsandbackwards,skip-count,base10,place-value,fraction,countingsequences.MentalcomputationandestimationAtthislevelstudentsexplorethepart-wholerelationshipsofnumberslessthan20usingmaterialstosupporttheirrecallofadditionandsubtractionfactswhereneces
4、sary.Theydevelopandusestrategiesofcounting-on,counting-backandmakingupto10togetherwithknowledgeofdoublesandthecommutativeandassociativepropertiesofadditiontoobtainfactsnotautomaticallyrecalled.Theydevelopestimationstrategiesforcountingandforcheckingcomputationswithl
5、argernumbers.Keydescriptors:part-wholerelationship,additionandsubtractionfacts;mentalcomputationstrategies,commutativeproperty,associativeproperty,estimationstrategies,checking.ComputationandapplyingnumberAtthislevelstudentsdeveloptheirabilitytouseknownfacts,base10m
6、aterialsanddiagramstomodeltradingandregroupingandtoassisttheminusingnumbersentencestorecordanswerstoadditionandsubtractionalgorithmsproblems.Theyuseinformalwrittenmethodsbasedonplace-valueleadingtothedevelopmentofwrittenalgorithmsforadditionandsubtractionofwholenumb
7、ersto99.NUMBERPATTERNSANDRELATIONSHIPSMATHEMATICS·LEVEL2NUMBER·PAGE24Theyrepresent,create,modelandsolvewhole-numberproblems,includingthoseinvolvingallformsoftheoperationsofadditionandsubtractionandthegroupingandsharinginterpretationsofmultiplicationanddivision.These
8、problemsmaybegeneratedbystories,realsituationsandpicturesinvolvingcollectionsofobjects,moneyandinformalunitsofmeasurement.Keydescriptors:b
