For the culminating project in my Master's of Education program, I am researching the concept of communal constructivism. It's the idea that students should be able to leave their mark on the classroom for future learners. It's the idea that students are a part of a community of learners and they will be able to impact the classroom, future learners, and maybe even the discipline.
It's an "everlasting" classroom -- "perpetual" classroom -- ever evolving based upon on our shared experiences, skills, and knowledge.