References

References

Alabama State Department of Education. (2015). 2015 Revised Alabama course of study: 

Mathematics. Montgomery, AL: Author.

Dick, T. P., & Hollebrands, K. F. (2011). Focus in high school mathematics: Technology to

support reasoning and sense making. Reston, VA: National Council of Teachers of

Mathematics.

Dunbar, K. (n.d.). Triangle Centers. Retrieved September 19, 2016, from

http://jwilson.coe.uga.edu/emat6680/dunbar/assignment4/assignment4_kd.htm

Hollebrands, K.  & Lee, S. (2011). Preparing to teach mathematics with technology: An

integrated approach to geometry. Atlanta, GA: Kendall Hunt Publishing.

Leinwand, S., Brahier, D., Huinker, D., Berry, R., Dillon, F., Larson, M., . . . Smith, M.

(2014). Principles to action: Ensuring mathematical success for all [E-book]. Reston,

VA: The National Council of Teachers of Mathematics.

Skemp, R. (1978). Relational understanding and instrumental understanding.

Arithmetic Teacher, 152-161.

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