http://true-stranger.livejournal.com/ ([identity profile] true-stranger.livejournal.com) wrote in [personal profile] shvarz 2011-04-12 03:11 pm (UTC)

А меня как то уже достали студенты умножаюшие 2 на 2 на калькуляторе и не знаюшие на вскидку синуса 30 градусов. Все таки это важно.
И вот как надо:
http://www.openlesson.ru/wp-content/gallery/upload/information_groups_1207601974.jpg
(31 comments)

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