References
Generation Ready. (n.d.). Raising student achievement through professional development. Retrieved January 27, 2016, from http://www.generationready.com/wp-content/uploads/2013/10/PD-White-Paper.pdf
Regional Educational Laboratory. (2007, October). Reviewing the evidence on how teacher professional development affects student achievement. Issues & Answers, (33), iii-31. Retrieved from http://ies.ed.gov/ncee/edlabs/regions/southwest/pdf/rel_2007033.pdf