170 лет со дня рождения В. В. Докучаева
Видеоматериал для проекта «Юбилейный урок», посвященный 170-летию со дня рождения В. В. Докучаева.
Посмотреть урок можно по ссылке:
5 months ago 00:50:20 1
5 months ago 03:10:30 1
5 months ago 00:00:35 1
5 months ago 02:18:44 1
5 months ago 00:11:47 1
5 months ago 00:09:28 1
5 months ago 00:48:49 1
5 months ago 00:49:50 1
5 months ago 00:13:44 1
5 months ago 00:55:35 1
5 months ago 00:02:11 1
5 months ago 00:11:35 1
5 months ago 00:02:01 1
5 months ago 00:00:59 1
6 months ago 01:48:10 1
6 months ago 00:08:02 1
6 months ago 00:01:01 1
6 months ago 00:08:03 1
6 months ago 00:10:03 1
6 months ago 00:53:28 1
6 months ago 00:06:38 1
6 months ago 00:21:49 1
6 months ago 00:18:25 1
6 months ago 00:00:00 1
