9Arkansas 21C Network. (2009) Making a Difference Together Schools of the 21st Century in Arkansas [ EB/OL]. http ://www. yale. edu/21 e/arkansas/materials, html: 9 - 11, 2013 - 02 - 18.
10The School of the 21st Century, Yale University. (2009). Arkansas School of the 21st Century Network: A Grassroots Effort That Is Making a Difference [ EB/OL]. http://www. yale. edu/21c/arkansas/materials, html: 6 - 7, 2013 - 02 -18.