Learning Projects in a Mainstream School

In a main stream school, i think you have to be really creative because you're restricted by the curriculum. Deciding on a group project is the number one place where i would start for classroom chers. delegating things like cleaning the class room and keeping it tidy makes things so much easier. And other rituals, like, i've heard of people deciding together what is the signal fortransitions in classes. So i hope that's some good examples that can get some kind of sparks in students' heads.