Gang of Four
729 views · Published 31 December 2007 · 3:25 · Indexed 20 September 2026
Channel: sciencetoymaker · 2007 · Education
Three great friends--from the Netherlands, South Africa and England--visited me in Pennsylvania, US. For two days they came into the middle school where I teach and wowed my students! Great memories. Thanks Jeff, Guus and David!
