The previous page is sending you to https://docviewer.yandex.ru/r.xml?sk=79dbe2d188fa8b66473ded4cd414bc26&url=http%3A%2F%2Ffb.ru%2Farticle%2F3587%2Fv-chem-zaklyuchaetsya-pedagogicheskaya-deyatelnost.

 If you do not want to visit that page, you can return to the previous page.