The article presents results of a research focused on evaluation of the programme Eco-Schools. The evaluation strategy was based similar research conducted in Ireland.
In the evaluation two groups were compared: the experimental, created by students of the 7th grade from schools awarded by the Green Flag, and the control, consisted of students of schools which recently launched the programme. The main dependent variables were knowledge of action strategies, action skills, internal locus of control, school social environment and pro-environmental behaviour.
The research revealed significant differences between group in the field of knowledge, locus of control and behaviour, while not showing differences in action skills and school social environment.