Links:
[1] http://www.edutopia.org/sara-ring
[2] http://www.edutopia.org/carving-cultural-connections-building-canoes
[3] http://www.edutopia.org/first-peoples-project-iearn-indigenous
[4] http://www.nea.org/tools/lessons/Should-We-Celebrate-Columbus-Day.html
[5] http://learning.blogs.nytimes.com/2010/10/08/resources-world-explorers/