Computer pluses: Helps with study, it is possible to use as a training apparatus in the course of formation of educational skills; Gives the chance to support a close connection with friends in other cities; Source of reception of the various information; Creativity freedom (creation of presentations, cards, a music writing, work with photos); Development of logic thinking, ability to the analysis and synthesis; Develops a self-trust, in the abilities to solve various informative problems;
Computer minuses: Problems with sight; Problems with a bearing; Shortage of time for other useful affairs; Narrowing a focus of interest, one-sided personal development; Aggravation of neurotic lines of the person because of excessive attachment to the virtual world; On the Internet there are ready abstracts, compositions, homeworks which can be copied blindly that отупляет and disaccustoms to mental work; Mental loading;
Например, два велосипедиста выехали в разном направлении. Скорость одного велосипедиста 240 км/ч, а второго 260 км/ч. Какое расстояние будет между ними через 30 минут?
Helps with study, it is possible to use as a training apparatus in the course of formation of educational skills;
Gives the chance to support a close connection with friends in other cities;
Source of reception of the various information;
Creativity freedom (creation of presentations, cards, a music writing, work with photos);
Development of logic thinking, ability to the analysis and synthesis;
Develops a self-trust, in the abilities to solve various informative problems;
Computer minuses:
Problems with sight;
Problems with a bearing;
Shortage of time for other useful affairs;
Narrowing a focus of interest, one-sided personal development;
Aggravation of neurotic lines of the person because of excessive attachment to the virtual world;
On the Internet there are ready abstracts, compositions, homeworks which can be copied blindly that отупляет and disaccustoms to mental work;
Mental loading;
Скорость второго велосипедиста - х км/ч
Расстояние между ними - 15 000 м
Время, за которое проехали - 30 мин
260 * 30 = 7800 (м) - проехал 1 велосипедист
15 000 - 7 800 = 7 200 (м) - проехал второй велосипедист
7 200 : 30 = 240 (км/ч) - скорость второго велосипедиста
Составить и решить три задачи, обратные данной?
Например, два велосипедиста выехали в разном направлении. Скорость одного велосипедиста 240 км/ч, а второго 260 км/ч. Какое расстояние будет между ними через 30 минут?
260 + 240 = 500
500 * 30 = 15 000 (м)