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LA D MONSTRATION

PRINCIPES G

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LA D MONSTRATION

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    1. LA DMONSTRATION CYCLE CENTRAL DU COLLGE

    2. PRINCIPES GNRAUX I SOCLE COMMUN EN MATHEMATIQUES la sortie de lcole obligatoire llve doit tre capable de raisonner logiquement, de pratiquer la dduction, de dmontrer Ltude des mathmatiques permet aux lves dapprhender lexistence de lois logiques et dveloppe :

    3. II MATHEMATIQUES : INTRODUCTION GNRALE POUR LE COLLGE

    6. DEUX EXEMPLES DACTIVITS Classe de 5me : dmonstration dans le domaine du calcul littral (cf. Doc. daccompagnement : du numrique au littral et le calcul numrique au collge) Classe de 4me : dmonstration en gomtrie

    7. Autres dmonstrations Classe de 5me : somme des angles dans un triangle (animation PowerPoint) Classe de 4me : somme de deux nombres relatifs crits sous forme fractionnaire dont le dnominateur est identique (cas gnral)

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