http://yankel.livejournal.com/ ([identity profile] yankel.livejournal.com) wrote in [community profile] russian_america 2015-11-30 05:27 pm (UTC)

Khan Academy.
Занимались с младшей математикой по этой штуке
Проблема с ней, что полный функционал - только на веб версии. Андроидная версия сильно кастрирована
(10 comments)

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