59216

Множення двоцифрового числа на одноцифрове

Конспект урока

Педагогика и дидактика

Розвивати мислення і память виховувати охайність працелюбність. Розвязуємо задачі. Розвязування прикладів коментовано множення числа на суму ІІІ. Розвязування задач.

Украинкский

2014-05-05

26 KB

1 чел.

Сценарій проведення уроку.

Тема: Множення двоцифрового числа на одноцифрове.

Мета: Навчити дітей множити двоцифрове число на одноцифрове. Розвивати мислення і пам'ять, виховувати охайність, працелюбність.

Обладнання: Демонстраційний матеріал (таблиці, схеми); роздатковий матеріал (сигнали, планшети, перфокарти).

План уроку.

  1.  Математична розминка.
  2.  Перевіряємо домашнє завдання.
  3.  Працюємо над новим матеріалом.
  4.  Вправи на закріплення.
  5.  Відпочиваємо.
  6.  Розв’язуємо задачі.
  7.  Вправи на увагу.
  8.  Робимо підсумок.

Хід уроку

І. Організаційна частина.

ІІ. Корекція і контроль знань учнів.

  1.  Математична розминка.

45 : 9 · 0 + 28

2 · 7 + 50

18 : 2 + 40

  1.  Перевірка д/з.
  2.  Розв’язування прикладів коментовано (множення числа на суму)

ІІІ. Вивчення нового матеріалу

  1.  Повідомлення теми і завдань уроку.
  2.  Пояснення матеріалу (І етап)

24 · 3 = (20 + 4) · 3 = 20 · 3 + 4 · 3 = 72

  1.  Складання алгоритму
    1.  Розкладаю
    2.  Перемножую
    3.  Додаю

18 · 3 = (10 + 8) · 3 = 10 · 3 + 8 · 3 = 54

ІІ етап

 І варіант     ІІ і ІІІ варіанти

Виконай за зразком:   Робота під керівництвом учителя:

 18 · 4  16 · 6    16 · 4   15 · 5  24 · 2

 32 · 3  17 · 5

ІІІ етап

  І в.    ІІ в.    ІІІ в.

Виконай самостійно: Виконай за зразком: Робота під керів-

ництвом учителя

 15 · 7     22 · 3    23 · 2

 18 · 5     19 · 6     26 · 3

IV етап

 І в.    ІІ в.     ІІІ в.

       Творче завдання:       Виконай самостійно:     Виконуй за зразком:

      Складіть приклади   

       3   5  16   2  11   12            11 · 4       12 · 6                  18 · 4   15 · 6

                                                    13 ·  5      21 · 3                        17 · 4

V етап

Спільне завдання.

  •  Знайдіть помилки в обчисленнях

13 · 5 = 75       12 · 7 = 84

18 · 2 = 36       25 · 3 = 78

IV. Фізкультхвилинка.

V. Розв’язування задач.

  1.  Скласти і розв’язувати задачу за схемою (колективно)

              

Ціна

Кількість

Вартість

12

5

?

11

2

?       

  1.  Розв. текстові задачі з підручника.

І в. – скласти вираз і розв’язати.

ІІ в. – розв’язати діями з поясненням.

ІІІ в. – записати дії.

VI. Геометричний матеріал.

Вправи на увагу.

VІІ. Підсумок.

Д/з (на вибір учнів різні за складністю роздаткові карточки).

 



 

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