Nøgleord
matematik
udskoling
Citation/Eksport
Resumé
Regnestrategier er vigtige for elevers matematiske udvikling, men forskning i strategier for rationale tal er begrænset. I denne artikel afdækker vi begrebet regnestrategier i relation til regning med brøker. Vi introducerer analysebegrebet fragmentbaseret metode og anvender dette i en analyse af fejlsvar knyttet til brøkopgaver i folkeskolens prøve i matematik uden hjælpemidler for 9. klasse. Analysen af fejlsvar viser omfanget af en mangelfuld talforståelse, og at der anvendes en fragment baseret metode. Undervisningen i brøker bør have som mål, at eleverne udvikler deres regnestrategier inden for brøker, så de mestrer et bredt udsnit af strategier og kan anvende disse adaptivt og fleksibelt
Referencer
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