A larger scale context for power teaching includes ideas from Duane Elgin, Lester Brown, Al Gore and many others. Collectively, they say the convergence of systems level global problems without national borders place before humankind a choice the species has never encountered in 195,000 years of life on "Spaceship Earth." In Elgin's…

What might count as a world class, national public education system in 2020? That empty cup took the floor at the 2010 Future of Learning (FoL) Summer Institute at Harvard University. It traveled from Longfellow Hall's lecture room on Appian Way to several learning groups scattered around campus. Though not deliberately created to think about…