Basics of Copyright And Use of Open Content by Educators

I find this information quite useful for a novice in the field of legislation pertaining to the  system of education.
It has been provided by Mr. Tarmo Toikkanen, who works in the Creative Commons Finland Affiliate Team. Among other valuable things he is talking about an open source of Wikimedia Commons which has now about 19,5 mln freely usable media files.

Basics of copyright and open content for educators from Tarmo Toikkanen