Mann, Eric (2006). "Creativity: The essence of mathematics". Journal for the Education of the Gifted. 30 (2): 236–260. doi:10.4219/jeg-2006-264. S2CID143043427.
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[1] A comparison of traditional and reform mathematics curricula in an eighth-grade classroom Education, Summer 2003 by Alsup, John K., Sprigler, Mark J.
Mann, Eric (2006). "Creativity: The essence of mathematics". Journal for the Education of the Gifted. 30 (2): 236–260. doi:10.4219/jeg-2006-264. S2CID143043427.