1. Baroody, A.J. 2004. The role of psychological research in the development of early childhood mathematics standards. In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 149-72. Mahwah, NJ: Lawrence Erlbaum. 2. Berk, L.E., & A. Winsler. 1995. Scaffolding children's learning: Vygotsky and early childhood education. Washington, DC: NAEYC. 3. Bowman, B.T., M.S. Donovan, & M.S. Burns, eds. 2001. Eager to learn: Educating our preschoolers. Washington, DC: National Academy Press. 4. Bredekamp, S., & T. Rosegrant. 1995. Reaching potentials: Transforming early childhood curriculum and assessment. Volume 2. Washington, DC: NAEYC. 5. Clements, D.H., & Conference Working Group. 2004. Part one: Major themes and recommendations. In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 7-76. Mahwah, NJ: Lawrence Erlbaum. 6. Clements, D.H., S. Swaminathan, M.-A. Hannibal, & J. Sarama. 1999. Young children's concepts of shape. Journal for Research in Mathematics Education 30: 192-212. 7. Copple, C.E. 2004. Math curriculum in the early childhood context. In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 83-90. Mahwah, NJ: Lawrence Erlbaum. 8. Field, T., Ezell, S., Nadel, J., Grace, A., Allender, S., & Siddalingappa, V. (2013). Reciprocal imitation following adult imitation by children with autism. Infant and Child Development, 22(6), 642-648. 9. Fuson, K.C. 2004. Pre-K to grade 2 goals and standards: Achieving 21st century mastery for all. In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 105-48. Mahwah, NJ: Lawrence Erlbaum. 10. Geary, D.C. 1994. Children's mathematical development: Research and practical applications. Washington, DC: American Psychological Association. 11. Gelman, R. 1994. Constructivism and supporting environments. In Implicit and explicit knowledge: An educational approach, ed. D. Tirosh, 55-82. Norwood, NJ: Ablex. 12. Ginsburg, H.P., A. Klein, & P. Starkey. 1998. The development of children's mathematical thinking: Connecting research with practice. In Handbook of child psychology, Volume 4: Child psychology in practice, eds. W. Damon, I.E. Sigel, & K.A. Renninger, 401-76. New York: John Wiley & Sons. 13. Ginsburg, H.P., S. Pappas, & K.-H. Seo. 2001. Everyday mathematical knowledge: Asking young children what is developmentally appropriate. In Psychological perspectives on early childhood education: Reframing dilemmas in research and practice, ed. S.L. Golbeck, 181-219. Mahwah, NJ: Lawrence Erlbaum. 14. Han, Y., & H.P. Ginsburg. 2001. Chinese and English mathematics language: The relation between linguistic clarity and mathematics performance. Mathematical Thinking and Learning 3: 201-20. 15. Heath, S.B. 1983. Ways with words: Language, life, and work in communities and classrooms. Cambridge, UK: Cambridge University Press. 16. Kilpatrick, J., J. Swafford, & B. Findell. 2001. Adding it up: Helping children learn mathematics. Washington, DC: National Academy Press. 17. Miura, I.T., C.C. Kim, C.-M. Chang, & Y. Okamoto. 1988. Effects of language characteristics on children's cognitive representation of number: Cross-national comparisons. Child Development 59: 1445-50. 18. National Council of Teachers of Mathematics. 2000. Principles and standards for school mathematics. Reston, VA: Author. 19. Natriello, G., E.L. McDill, & A.M. Pallas. 1990. Schooling disadvantaged children: Racing against catastrophe. New York: Teachers College Press. 20. Özar, M. (2012). Curriculum of Preschool Education: Swedish Approach. International Journal of Business and Social Science, 3(22). 21. Park, M. 2000. Linguistic influence on numerical development. The Mathematics Educator 10 (1): 19-24. 22. Piaget, J., and B. Inhelder. 1967. The child's conception of space. New York: W.W. Norton. 23. Razel, M., & B.-S. Eylon. 1990. Development of visual cognition: Transfer effects of the Agam program. Journal of Applied Developmental Psychology 11: 459-85. 24. Seo, K.-H., & H.P. Ginsburg. 2004. What is developmentally appropriate in early childhood mathematics education? In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 91-104. Mahwah, NJ: Lawrence Erlbaum. 25. Steffe, L.P. 2004. PSSM from a constructivist perspective. In Engaging young children in mathematics: Standards for early childhood mathematics education, eds. D.H. Clements, J. Sarama, & A.-M. DiBiase, 221-52. Mahwah, NJ: Lawrence Erlbaum. 26. Vygotsky, L.S. [1934] 1986. Thought and language. Cambridge, MA: MIT Press.