Use of Free/Open Source Software in e-education

We are in the age of computer and Internet but most of teaching is still performed in classical way. We speak a lot about new method of teaching and e-learning, which are connected with large investment. The expense for software we can reduce with use of free/open source software. That we don't use it often is because we don't know it and we fear from new things where we need to put some effort. In this paper free/open source software and movements in the world is presented. The benefits of using this software from primary school to university is shown