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La soustraction avec parenthèse
Matériel didactique : Tableau noir et craies
Objectif opérationnel : A l'issue de la leçon, l'élève sera capable d'effectuer les opérations sur la soustraction avec parenthèse.

Rappel

Dispose et effectue :

1) 97 - 32 =

2) 100 - 45 =

Rappel

Je dispose et j'effectue :

                  

Motivation

Présentation des exercices :

  • (46 - 23) - (15 - 10) =
  • (100 - 10) - (45 - 15) =

De quoi s'agit-il dans ces exercices ?

Motivation

  • (46 - 23) - (15 - 10) =
  • (100 - 10) - (45 - 15) =

Il s'agit de la soustraction avec parenthèse.

Annonce du sujet

Quelle leçon allons-nous voir aujourd'hui ?

Annonce du sujet

Nous allons voir la soustraction avec parenthèse.

Situation d'apprentissage

Le maître insiste surtout à la procédure pratique et explique :

Travail en sous-groupe

Effectue :

(78 - 32) - (25 - 13) =

(69 - 25) - (15 - 7) =

(91 - 15) - (27 - 19) =

Observation des élèves

J'effectue :

Résolution en sous-groupe des élèves :

(78 - 32) - (25 - 13) = 46 - 12 = 34

(69 - 25) - (15 - 7) = 44 - 8 = 36

(91 - 15) - (27 - 19) = 76 - 8 = 68

Qu'avons-nous étudié aujourd'hui ?

Nous avons étudié la soustraction avec parenthèse.

MessagesTimelineExceptionsViews7RouteQueries36Models48GateSessionRequest
8.1.28PHP Version343msRequest Duration26MBMemory UsageGET lessons/{id}/{slug}Route
    • Booting (179ms)
    • Application (164ms)
    • 1 x Booting (52.26%)
      179.50ms
      1 x Application (47.65%)
      163.67ms
      7 templates were rendered
      • public.lessons.show (resources/views/public/lessons/show.blade.php)2bladefile
        Params
        0
        lesson
        1
        lessons
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        0
        property
        1
        firstTitle
        2
        secondTitle
        3
        src
        4
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        5
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        6
        __laravel_slots
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        0
        summary
        1
        title
        2
        actionLink
        3
        actionText
        4
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        5
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        6
        __laravel_slots
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        1
        title
        2
        href
        3
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        4
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        5
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        Params
        0
        __env
        1
        app
        2
        errors
        3
        lesson
        4
        lessons
        5
        component
        6
        __currentLoopData
        7
        lesson_
        8
        loop
        9
        section
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        0
        __env
        1
        app
        2
        errors
        3
        lesson
        4
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        component
        6
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        8
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        9
        section
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        0
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        1
        app
        2
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        3
        lesson
        4
        lessons
        5
        component
        6
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        9
        section
      uri
      GET lessons/{id}/{slug}
      middleware
      web
      controller
      App\Http\Controllers\Public\LessonController@show
      as
      public.lesson.show
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      prefix
      /lessons
      where
      file
      app/Http/Controllers/Public/LessonController.php:86-138
      36 statements were executed57.53ms
      schoolap
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        • 17. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 19. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
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        • 20. /app/Http/Controllers/Public/LessonController.php:95
        • 21. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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