Project
Mostly we work on our projects in such a way:
Our school searches a common subject from, e.g., environment for itself then every Stg searches for itself an internal subject from z.b. Soiling by human influence. Then in the Stg another from 4 to 5 groups itself on this subject form a small subject select, e.g., soiling by cars. Every group be worked on subject. Her project introduces the best two groups every Stg before the whole school.