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Learning Resources LER 2510 manual

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Table of contents for the manual

  • Page 1

    Snap togethe r the Fraction T ower ® Cu bes and he lp your st udents unders tand basic fracti on concepts and operati ons. Fracti on T ower ® Cub es enable s tudent s to relate a bstrac t ideas to co ncrete a ctivit ies as they c an see, tou ch, and co mbine an d compare v arious p ieces! Y ou r fifty- one piec e set incl udes: on e red whole , t[...]

  • Page 2

    Equiv alent Fractions Make two e quivale nt fract ions suc h as  and  with y our frac tion cub es. Ask stud ents to ob serve an d compare t he height o f each fra ction. M ake anoth er set of eq uivale nt fract ions and observ e the heig hts. Cha llenge st udents t o make ano ther pai r of equiva - lent fra ctions w here the h eights d [...]

  • Page 3

    six sixi èmes ble u clair , huit huitièm es bleu fo ncé, dix di xièmes m auves, douze do uzième s noirs, un m ode d’em ploi. A C TIVITÉS Fr actions de l’unité Montre z le petit c ube roug e à vos élève s. Le chif fr e 1 y est inscr it. Puisqu e le petit c ube roug e est égal à un e unité en tière, l es autre s cubes sont don c des[...]

  • Page 4

    Expr essions fr actionnair es et nombr es fr actionnaires Les élèv es peuve nt faire d es expres sions fr action naires t elles qu e  et  en utili sant deu x ou plusi eurs jeux d e cubes. M ettez le s élèves a u défi de faire d es expre ssions f raction naires à l ’aide de s fracti ons réel les et de l’unit é. En réal ité,[...]

  • Page 5

    Begrif fe wi e T eil, Ganzes, N enner , Zähler , gl eich gro ße T eile und Stammb ruch in Ih re Diskus sion, mi t ein. Echte Brüche Zeigen S ie den Sch ülern wi e man echte B rüche au s gleich farbige n Quader n baut. V eransc haulic hen Sie, daß  aus eine m gelben Qu ader besteh t,  beste hen aus zwe i gelben Q uadern u nd [...]

  • Page 6

    eine Unglei chung schrif tlich aufzus tellen , um das V erhä ltnis zwisch en den Brüche n zu demon striere n (  >  ). Die se Übung k ann abgew andelt werden , indem Si e einen St ammbru chquade r zeigen u nd dann di e Schüle r auf forde rn einen an deren St ammbru chquade r zu finde n der kürz er oder länger i st. Bitt en Sie d[...]

  • Page 7

    Simplificar fr acciones: Simpli ficar fr accion es reduc iéndola s a los térm inos más p equeño s buscan do las fra ccione s equiva lentes. L a fracci ón equiv alente q ue utili ce el menor n úmero de c ubos del mi smo colo r es la más re ducida . Constru ya una frac ción con c uatro cu bos azule s. Pregu nte a los es tudian tes que descri [...]

  • Page 8

    A TTIVIT À Fr azioni unitarie il blocc hetto ro sso equiv ale ad una u nità inte ra. Mett ere a conf ronto il blocch etto ros a con il blo cchetto rosso. C i voglion o due bloc chetti r osa per ugua gliare l ’altez za del blo cchetto r osso. I bl occhet ti rosa ha nno perciò i l valore d i un mezzo , come indi cato. Di mostra re che i blo cche[...]

  • Page 9

    propri e. In prat ica, cos truisc ono una fra zione im propri a da un nume ro misto. P er esemp io,  si può co struir e utiliz zando set te blocc hetti gi alli o un blocc hetto ro sso e tre bl occhett i gialli . Svolge re l’att ività al contra rio, ini ziando c on una fraz ione imp ropria e t rasfor mandol a in un numer o misto. P ar agon[...]

  • Page 10

    Gelijkw aardige br euk en Maak twe e gelijk waardig e breuke n zoals  en  met de breu kkubus sen. V raag studen ten om goed t e kijken e n de hoogt e van ieder e breuk te ver gelijk en. Daag d e studen ten uit om ee n tweeta l gelijkw aardig e breuke n te maken w aarbij d e hoogten n iet aan el kaar gel ijk zijn ( dit is niet mog elijk![...]

  • Page 11

    O seu conj unto de ci nquent a e uma peças i nclui: u m inteir o vermel ho, dois mei os cor -de- rosa, tr ês terços c or de lara nja, qua tro quar tos amare los, cinco qu intos ve rdes, se is sexto s azul-tu rquesa , oito oit avos azu is, dez décimo s roxos e do ze duodéc imos pre tos. A C TIVID ADES Fr acções da Unidade O cubo ver melho é [...]

  • Page 12

    Also available from Learning Resources ® : LER 2086 Blank Fraction T ower ® Cubes LER 2511 Decimal T ower ® Cubes LER 2512 Percent T ower ® Cubes Fr acções Imprópr ias e Números Mis t os Com dois ou mais conjuntos de cubos Fraction T ower ® Cubes os a lunos podem co nstrui r fracçõe s impróp rias com o  e  . Peças ao s alun[...]