[ 1 ] King K. Alexandria students use STEM to solve some real-world problems [Internet]. Washington, DC: WTOP; c2017 [updated 2017 Jul 21; cited 2017 Nov 5]. Available from: https://wtop.com/education/2017/07/alexandria- students-stem-solve-problems/slide/6/.

[ 2 ] NAE Grand Challenges for Engineering Committee. NAE Grand Challenges for Engineering. Washington, DC: National Academy of Engineering; 2008.

[ 3 ] Evans DL, McNeil BW, Beakley GC. Design in engineering education: past views of future directions. Eng Educ 1990;79(4):517–22. link1

[ 4 ] Katehi L, Perason G, Feder MA, editors. Engineering in K-12 education: understanding the status and improving the prospects. Washington, DC: The National Academies Press; 2009.

[ 5 ] Petroski H. To engineer is human: the role of failure in successful design. New York: Vintage Boooks; 1992. link1

[ 6 ] Khalaf K, Balawi S, Hitt GW, Radaideh A. Engineering design education: when, what, and how. Adv Eng Educ 2013;3(3):1–31. link1

[ 7 ] Grinter LE. Summary of the report on evaluation of engineering education. J Eng Educ 1955;46:25–60. link1

[ 8 ] Engineering Accreditation Commission. Criteria for accrediting engineering programs: effective for reviews during the 2015–2016 accreditation cycle. Baltimore: ABET; 2014. link1

[ 9 ] Froyd JE, Ohland MW. Integrated engineering curricula. J Eng Educ 2005;94 (1):147–64.

[10] NGSS Lead States. Next generation science standards: for states, by states. Washington, DC: The National Academies Press; 2013.

[11] National Research Council. A framework for K-12 science education: practices, crosscutting concepts, and core ideas. Washington, DC: The National Academies Press; 2012.

[12] Dare EA, Ellis JA, Roehrig GH. Driven by beliefs: understanding challenges physical science teachers face when integrating engineering and physics. J Pre- Coll Eng Educ 2014;4(2):47–61. link1

[13] Roehrig GH, Moore TJ, Wang HH, Park MS. Is adding the E enough? Investigating the impact of K-12 engineering standards on the implementation of STEM integration. Sch Sci Math 2012;112(1):31–44. link1

[14] Shirey KL. How do we make this happen? Teacher challenges and productive resources for integrating engineering design into high-school physics dissertation. College Park: University of Maryland; 2017. link1

[15] High School Program Innovation Planning Grant [Internet]. Richmond: Virginia Department of Education; 2015 [cited 2018 Mar 10]. Available from: http://www.doe.virginia.gov/news/news_releases/2015/innovation_ planning_grants/global_stem_challenges_program.pdf.

[16] Johnson K, Murphy S, O’Hara C, Shirey K. Four phases of the engineering design process in math and science classrooms. Kaleidosc Educ Voices Perspect 2015;1(2):19–24. link1