The document contains over 100 repetitions of the URL "http://vk.com/school_ipad". It provides no other text or context. In summary, it is a list consisting solely of the same URL repeated many times.
The document discusses the benefits of exercise for both physical and mental health. It notes that regular exercise can reduce the risk of diseases like heart disease and diabetes, improve mood, and reduce feelings of stress and anxiety. Staying active also helps maintain a healthy weight and keeps muscles, bones and joints healthy as we age.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the history and development of paper money. It explains that paper money was first developed in China during the Tang Dynasty as a more efficient way to conduct trade compared to cumbersome metal coins. Eventually, the concept spread to Europe and paper money became the dominant form of currency worldwide by the 20th century.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the benefits of exercise for mental health. It states that regular exercise can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illnesses.
The document discusses the history and development of chocolate over centuries. It details how chocolate originated from cacao beans used by the Olmecs and Mayans as currency and medicine. Later, the Aztecs and Europeans discovered chocolate and it became popularized as a drink among European nobility in the 17th century before mass production made it accessible to common people.
The document contains over 100 repetitions of the URL "http://vk.com/school_ipad". It provides no other text or context. In summary, it is a list consisting solely of the same URL repeated many times.
The document discusses the benefits of exercise for both physical and mental health. It notes that regular exercise can reduce the risk of diseases like heart disease and diabetes, improve mood, and reduce feelings of stress and anxiety. Staying active also helps maintain a healthy weight and keeps muscles, bones and joints healthy as we age.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the history and development of paper money. It explains that paper money was first developed in China during the Tang Dynasty as a more efficient way to conduct trade compared to cumbersome metal coins. Eventually, the concept spread to Europe and paper money became the dominant form of currency worldwide by the 20th century.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the benefits of exercise for mental health. It states that regular exercise can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illnesses.
The document discusses the history and development of chocolate over centuries. It details how chocolate originated from cacao beans used by the Olmecs and Mayans as currency and medicine. Later, the Aztecs and Europeans discovered chocolate and it became popularized as a drink among European nobility in the 17th century before mass production made it accessible to common people.
1. Математика 5 класс
Тема: Деление
обыкновенных дробей.
Автор: Яковлева Г.В.
МОУ «СОШ №8»
Ставропольский край
2. Тема: Деление
обыкновенных дробей.
Цели: Формирование знаний о правилах деления
обыкновенных дробей, смешанных чисел и умение
применять их в простейших случаях;
Развитие умения обобщать, делать выводы;
Воспитание ответственного отношения к
учебному труду.
3. Устная работа:
Л И Т О Л Е З Е Н Е Д Е
0,8 1 100 0 0,01 6 40
3
5
9
2
3
5
9
2
9
1
15
4
23
50
«золотое деление»
4. Немного истории
Хотя умножение в старину и считалось нелегким делом, однако деление
было еще сложнее. В Италии до сих пор сохранилась поговорка: «Трудное
дело деление.» Так обычно говорят, когда оказываются перед почти
неразрешимой задачей. В средние века людей, умеющих производить
деление, можно было пересчитать по пальцам. Они переезжали из города в
город по приглашению купцов, желавших привести в порядок свои счета.
Методом деления было придумано не мало. Монах – математик Герберт,
будущий Папа Римский Сильвестр ||, привел в своих сочинениях несколько
способов деления. Учитывая, сколь неграмотны были монахи,
производившие вычисления ( почти никто из них не знал таблицу
умножения), он ввел строгие ограничения. В итоге правила Герберта
оказались настолько сложными, что не были поняты даже самыми
прилежными счетчиками – абацистами. Метод Герберта стали называть
«железным» делением . Когда в Европе появился арабский способ деления,
основанным на принятой сейчас позиционной десятичной системе
счисления, он получил название «золотое» деление.
Был еще способ деления, который назывался «галера».