References
- Choi-Koh (1999). Exploring Area of Polygons Using Computer Dot Board. Education of Primary School Mathematics, 3(2), 103-107.
- Choi-Koh, S. & Ko, H. (2001). The Attitude of the Researchers in Qualitative Method. Communications of Mathematics Education, 12, 423-450.
- Choi-Koh, S, & Lee, Y. (2005). Conceptual Understanding of Functions through a Graphing Calculator. The Journal of Korean School Mathematics Society, 8(2), 203-222. https://doi.org/10.4134/JKMS.2005.42.2.203
- Ministry of Education (2015). 2015 Mathematics Curriculum, The Ministry of Eduction.
- Ministry of Education (2019). Supplementary Book for Teachers of Math 5-1. Seoul: Cheonjae Gyoyuk.
- Kim, S. (2003). The problem of mensuration of parallelogram raised by Wertheimer and alternative strategies. Journal of Educational Research in Mathematics, 13(4), 485-493.
- Kim, S. (2008). Review of Six Stages Theory of Learning Mathematics Suggested by Zoltan Dienes. School Mathematics, 10(3), 339-355.
- Kim, W., Lee, D., & Whang, W. (2017). A Study on Elementary Students’ Informal Knowledge of the Area Concept and Measurement. Korean Education Enquiry, 35(2), 53-87. https://doi.org/10.22327/kei.2017.35.2.053
- Kim, H. (2009). A Study on Methods of teaching and learning mathematics through play activities based on Dienes' Mathematics Educational theory. Thesis, Dankook University.
- Na, G. (2012). Examining Students' Conceptions about the Area of Geometric Figures. Journal of Elementary Mathematics Education in Korea, 16 (3), 451-469.
- Park, E., & Paik, S. (2010). Epistemological Obstacles in the Learning of Area in Plane Figures. Journal of Educational Research in Mathematics, 20(3), 305-322.
- Sun, J. (2016). Development and Application of A Play Learning-based Programming Instruction Model : Focusing on Elementary School Students in Fourth to Sixth Grade. Thesis, Yonsei University.
- Oh, Y. (2010). Rethinking about Teaching Area Measurement in the Elementary Grades-Focused on the 2007 Revised Curriculum of Mathematics. Korean Journal of Elementary Education, 21(1), 233-245. https://doi.org/10.20972/kjee.21.1.201007.233
- Lee, B., Kim, D., & Jeon, Y. (2010). Causes of anger experienced by PE teaching and coping strategies. Korean Journal of Sport Pedagogy, 17(3), 115-133.
- Lee, Y. & Kim, K. (2013). The Effects of Mother and Father’s Parenting Self-Efficacy on Children’s Academic Self-Efficacy - Focusing on the Mediating Effects of Parental Supports of Learning. The Korean Journal of Woman Psychology, 18(4), 549-565. https://doi.org/10.18205/kpa.2013.18.4.004
- Lee, J. (2016). Development of A Parent Education Program to Improve Anger Control Ability of Parents of Elementary School Children. The Korea Contents Society, 16(5), 668-685. https://doi.org/10.5392/JKCA.2016.16.05.668
- Lee, C., Joo, H. & Choi-Koh, S. (2014). Finding the Way of Unifying the Theory and the Practice in Mathematics Education: Focused on Cobb's. School Mathematics, 16(4), 709-726.
- Lim, H. & Choi-Koh, S. (2016). A Study on Instrumentalization in van Hiele's Geometric Teaching Using GeoGebra. Communications of Mathematics Education, 30(4), 435-452. https://doi.org/10.7468/jksmee.2016.30.4.435
- Jeon, S. (2007). Anger-Thought and Anger Expression Modes of Parents who have Elementary Children. Thesis, Sookmyung Women's University.
- Jeong, M., & Yoon, K. (2015). The Effects of Parents' Anger Control Program based on Transactional Analysis Theory : Focused on the Mothers of Adolescents. Journal of Parent Education, 7(3), 1-18.
- Cha, H., & Kim, Y. (2018). A Study on the Development and the Effect of Parents' Education Program on Teaching Math for Children. Journal of Parent Education, 10(2), 137-158.
- Hwang, Y., Jang, H., & Kim, K. (2014). The effects of parental educational support on cognitive achievement of elementary school students. Korea Education Research, 20(1), 93-122.
- Whang, H., Na, G., Choi, S., Park, K., Lim, J. & Sea, D. (2016). The New Theory of Mathematics Education. Seoul: Moonumsa.
- Noworry about Private Lessons (2015). "60% of Supoza (Students who give up doing math) in High School", Retrieved from https://data.noworry.kr/170
- Yoon, S. (2017). "The Fourth Revolution is Mathematics Revolution", Retrieved from https://www.hankyung.com/opinion/article/2017021222681
- Beesang (2016). "5-1.5 The Area of Polygons", Retrieved from http://www.visang.com/upload/contents/161ecoho/html/data/수학/5학년/단원%20평가-라이트/(2016)%20라이트%205-1_5.%20다각형의%20넓이.hwp
- Mathematics Never Be Silly (2016). Elementary School Mathematics for First Semester of the 5th Grade: The Area of Polygons and Problems for Assessment. Retrieved from https://fuman001.tistory.com/20
- Korean Statistical Information Service (2019). "The Investigation of 2018 Expense for Private Education from Elementary School to High School", Retrieved from http://www.kostat.go.kr/portal/korea/kor_nw/1/1/index.board?bmode=read&aSeq=373552
- Baturo, A. & Nason, R (1996). Student teachers' subject matter knowledge within the domain of area measurement. Educational Studies in Mathematics, 31(3), 235-268. https://doi.org/10.1007/BF00376322
- Clements, D. H. & Stephan, M. (2004). Measurement in PreK-2 Mathematics. In D. H. Clements, J. Sarama Y A. M. DiBiase(Eds.), Engaging young children in mathematics: Standards for early childhood mathematics education. Mahwah, NJ: Lawrence Erlbaum Associates.
- Dienes, Z. P. (1960). Building Up Mathematics. London: Hunchinson Educational Ltd.
- Hatch, J. A. (2002). Doing Qualitative Research in Education Settings. 진영은 역(2008). 교육 상황에서 질적 연구 수행하기. 서울: 학지사.
- Reynolds, A. & Wheatly, G. H. (1996). Elementary students' construction and coordination of units in an area setting. Journal for Research in Mathematics Education, 27(5), 564-581. https://doi.org/10.2307/749848
- Vinner, S. (1983). Concept definition, concept image and the notion of function. International Journal of Mathematical Education in Science and Technology, 14(3), 293. https://doi.org/10.1080/0020739830140305