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61 objectifs pour l'entrainement au calcul mental

61 objectifs pour l'entrainement au calcul mental


Qu’est-ce que C@lcul ment@l BaREM ?


C@lcul ment@l BaREM est un logiciel d’entrainement au calcul mental proposant des exercices générés automatiquement sur 61 objectifs de techniques opératoires du cycle 4.

Ce logiciel est disponible en deux versions :

  • une version élève, pour l’entrainement en autonomie ;
  • une version classe, pour la vidéoprojection.

Liste des 61 objectifs

Prendre un bon départ

1          Ajouter astucieusement

2          Multiplier astucieusement

3          Des fractions à connaitre par cœur

4          Connaitre les critères de divisibilité par 2 ; 3 ; 4 ; 5 ; 9 ; 10

Comparer des nombres

5          Comparer des nombres relatifs

6          Comparer des nombres relatifs (dont fractions)

Fractions

7          Simplifier des fractions

Puissances d’un nombre

8          Les puissances d’un nombre

9          Calculer avec des puissances

10        Enchainer des opérations avec des puissances

11        Les préfixes de nano à giga

12        Utiliser la notation scientifique

Opérations

13        Passer d’une écriture fractionnaire à une écriture décimale

14        Opérer sur les nombres décimaux

15        Estimer un ordre de grandeur

16        Additionner des nombres relatifs (nombres entiers)

17        Soustraire des nombres relatifs (nombres entiers)

18        Additionner et soustraire des nombres relatifs

19        Multiplier des fractions

20        Additionner des fractions

21        Soustraire des fractions

22        Diviser des fractions

23        Opérer sur les fractions

24        Additionner et soustraire des nombres relatifs (fractions)

25        Multiplier des nombres relatifs

26        Diviser des nombres relatifs

27        Opérer sur les nombres relatifs

28        Calculer avec des racines carrées

Successions d’opérations

29        Enchainer des opérations (nombres positifs sans parenthèses)

30        Enchainer des opérations (nombres positifs avec parenthèses)

31        Enchainer des opérations (nombres positifs)

32        Enchainer des opérations (nombres relatifs)

33        Appliquer la distributivité / calcul astucieux

34        Enchainer des opérations (sans parenthèses)

35        Enchainer des opérations (avec parenthèses)

36        Enchainer des opérations

Arithmétique

37        Déterminer si un entier est un nombre premier

38        Décomposer un entier en produits de facteurs premiers

Calcul littéral

39        Appliquer la distributivité : vrai ou faux

40        Simplifier une expression littérale (niveau 1)

41        Simplifier une expression littérale (niveau 2)

42        Développer et simplifier une expression littérale (avec la distributivité)

43        Développer et simplifier une expression littérale (avec la double distributivité)

44        Factoriser une expression

45        Résoudre une équation

46        Résoudre une inéquation

Statistiques

47        Déterminer un effectif et calculer une fréquence

48        Calculer une moyenne

49        Calculer une étendue

50        Déterminer une médiane

Probabilités

51        Calculer la probabilité d’une issue

52        Calculer la probabilité d’un évènement

Proportionnalité

53        Compléter un tableau de proportionnalité (niveau 1)

54        Compléter un tableau de proportionnalité (niveau 2)

55        Questions de proportionnalité (niveau 1)

56        Questions de proportionnalité (niveau 2)

Pourcentage

57        Appliquer un pourcentage

58        Calculer un pourcentage

Raisonnement

59        Trouver un contre-exemple

En géométrie

60        Calculer des longueurs en géométrie (niveau 1)

61        Calculer des longueurs en géométrie (niveau 2)

 

Un niveau est associé à chaque objectif.
Cette indication de niveau est une proposition qui traduit une progressivité des objectifs sur l’ensemble du cycle 4 :

Ces exercices peuvent être traités tout au long du cycle 4.

Ces exercices sont plus adaptés pour les 2e et 3e années du cycle 4.

Ces exercices nécessitent d’avoir étudié plus de notions et sont donc plutôt réservés à la fin du cycle 4.

 

Dans le logiciel d’entrainement au calcul mental (version élève comme version classe), on peut accéder à chacun de ces objectifs via deux sommaires :

 

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