Academic Article

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Year	Title
2020	Public Preschool Policy in the United States: Focusing on State Pre-K Programs.  Journal of Eco Early Childhood Education & Care.  19:59-88. 2020
2020	Early childhood preservice teachers’ perceptions of advocacy and advocacy training.  Korean Journal of Early Childhood Education.  22:66-92. 2020
2016	Planning with UDL.  Early Educators.  27:12-18. 2016
2015	Developing leadership competence in early childhood educators.  New Waves : Educational Research & Development.  18:53-56. 2015
2013	Technology and the creation of challenging problems.  Mathematics Competitions.  26:10-20. 2013
2012	Technology-enabled mathematical problem posing as modeling.  Journal of Mathematical Modelling and Application.  1:22-32. 2012
2010	Supporting transnational families.  YC: Young Children.  65:30-37. 2010
2009	Mathematics, computers, and young children as a research-oriented learning environment for a teacher candidate.  Asia Pacific Education Review.  10:247-259. 2009
2008	Early Childhood Teacher Policy in the United States: Continuing Issues, Overcoming Barriers, and Envisioning the Future.  International Journal of Child Care and Education Policy.  2:15-30. 2008
2008	Survival, Adjustment, and Acculturation of Newly Immigrated Families With School-Age Children: Cases of Four Korean Families.  Diaspora, Indigenous, and Minority Education.  2:4-24. 2008
2008	On mathematical problem posing by elementary pre-teachers.  Spreadsheets in Education.  3:1-19. 2008
2007	On the Notion of Coherence in Technology-Enabled Problem Posing.  Proceedings of the 31st Conference of the International Group for the Psychology of Mathematics Education.  193-193. 2007
2006	Technology as a medium for elementary pre-teachers' problem-posing experience in mathematics.  Journal of Computers in Mathematics and Science Teaching.  25:309-323. 2006
2003	The culturally situated process of knowledge production in a virtual community.  Current Issues in Comparative Education (CICE).  6:50-60. 2003

Book

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Year	Title
2011	Improving the use of human resources in early childhood programs for enhancing the quality of program services. 2011
2008	미국의 육아 정책 2008

Chapter

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Year	Title
2016	Immigrant Children 2016
2016	PATHWAYS TO EARLY CHILDHOOD TEACHER PREPARATION.  Ed. Couse, Leslie.  165-180. 2016
2015	Using digital technology for problem posing.  71-102. 2015
2015	Using Digital Technology for Mathematical Problem Posing.  71-102. 2015
2010	CONDITIONS OF EDUCATION IN KOREA: THE EARLY STUDY-ABROAD BOOM AND THE GOOSE FAMILY PHENOMENON.  27-47. 2010

Conference Paper

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Year	Title
2011	Early childhood teacher policy: Recruitment, preparation, and retention of EC teachers in the United States..  149-154. 2011
2007	Didactical Aspects of Using Technology for Problem Posing in Mathematics Education.  Society for Information Technology and Teacher Education International Conference Annual. 3208-3210. 2007
2007	Pre-Service Teacher Development Through Technology Integration in Early Grades Mathematics.  PME 31: Proceedings of the 31st Conference of the International Group for the Psychology of Mathematics Education. 302-302. 2007
	Developing elementary pre-teachers’ problem formulating skills in mathematics using technology.  Proceedings of SITE 2006. 4372-4377.
	On the Notion of Coherence in Technology-Enabled Problem Posing.  Conference of the International Group for the Psychology of Mathematics Education. 193-193.
	Professional development school as a venue for integrating technology in teacher education..  Society for Information Technology and Teacher Education International Conference Annual. 3211-3216.
	Using spreadsheets as problem-posing environments in elementary teacher education.  ICTCM-18 2006, CD-ROM Proceedings. 6-10.