1 National Governors Association Center for Best Practices & Council of Chief State School Officers. (2010). Common Core State Standards for Mathematics. Washington, DC: Authors.
2 Boaler, J. (2015). What’s math got to do with it?: How teachers and parents can transform mathematics learning and inspire success (pp. 57-83). New York, NY: Penguin Books.
3 National Center for Education Statistics. (2013, 2015, 2017, 2019). National Assessment of Educational Progress: An overview of NAEP. Washington, D.C.: National Center for Education Statistics, Institute of Education Sciences, U.S. Dept. of Education. Retrieved 2020, from LINK
4 Organisation for Economic Co-operation and Development (2009, 2012, 2015, 2018), Program for International Student Assessment; Reading, Mathematics and Science. Retrieved 17 December 2020, from LINK
5 Loveless, T. (2020, November 30). Common Core Has Not Worked. Retrieved 2020, from LINK
6 Park, H., & NoWorryEdu (2015, July 22). 수학교육과정 개정을 위한 학교 수학교육 관련 설문조사 결과보도 [Survey Report Regarding Mathematics Education for Mathematics Educational Reform]. Korea: 사교육걱정없는세상 정책대안연구소 [NoWorryEdu Policy Reform Research Facility]
7 Korean Ministry of Education. (2009, 2015). National Curriculum Information Center. Retrieved 2020, from LINK
8 Organisation for Economic Co-operation and Development (2009, 2012, 2015, 2018), Program for International Student Assessment; Reading, Mathematics and Science. Retrieved 17 December 2020, from LINK