1. The President’s Council of Advisors on Science and Technology, "Prepare and Inspire: K-12 Education in Science, Technology, Engineering, and Mathematics (STEM)," 2010. [Online]. Available: https://obamawhitehouse.archives.gov/sites/default/files/microsites/ostp/pcast-stem-ed-final.pdf.
2. Carnegie Corporation of New York. "The Need to Align Teaching with Next Generation Science Standards." https://www.carnegie.org/our-work/article/need-curriculum-based-professional-learning-align-teacher-practice-next-generation-science-standards/ (accessed December 10th, 2022, 2022).
3. NGSS Lead States, Next Generation Science Standards: For States, By States. Washington, DC: The National Academies Press (in English), 2013, p. 532.
4. T. J. Moore, K. M. Tank, A. W. Glancy, and J. A. Kersten, "NGSS and the landscape of engineering in K‐12 state science standards," Journal of Research in Science Teaching, vol. 52, no. 3, pp. 296-318, 2015.
5. R. Hammack and T. Ivey, "Elementary teachers' perceptions of K‐5 engineering education and perceived barriers to implementation," Journal of Engineering Education, vol. 108, no. 4, pp. 503-522, 2019.