The 4 Cs of 21st Century Learning are: Creativity, Communication, Critical Thinking and Collaboration. "Project Based Learning emphasizes creative thinking skills by allowing students to find that there are many ways to solve a problem." One of my peers from night school introduced this phenomenal video which sparked a wave of cardboard creativity in kids around the world. This video was also the start of a new foundation called, "Imagination Foundation" to foster creativity in more kids.
Thanks John.