The author majored in elementary education methods at Seoul National University of Education and also the same in graduate school, and worked as a writer for elementary school mathematics textbooks according to the 2009 revised curriculum. She presented Korean mathematics textbooks at ICME12 (World Math Educators Conference), studied Danish mathematics in Denmark as a Gyeonggi-do research teacher in 2012. She currently teaches children in elementary school, and has written Storytelling Creativity, Math Smarter.