The Vital Role of Play in Early Childhood by Joan Almon http://www.waldorfresearchinstitute.org/pdf/BAPlayAlmon.pdf
My View: Obama, Romney Need to Know One Thing About Early Childhood Education – Start Over http://schoolsofthought.blogs.cnn.com/2012/08/29/my-view-obama-romney-need-to-know-one-thing-about-early-childhood-education-start-over/
How Children’s ‘Play’ is Being Sneakily Redefined by Alfie Kohn
All Work and No Play: Why Your Kids are More Anxious, Depressed
Death of Preschool, Scientific American
RESEARCH / DATA
Bjorkland DF and Pellegrini AD. 2000. Child development and evolutionary psychology. Child Development 71: 1687-1708.
Dickinson, D.K., & Tabors, P.O. (Eds.) (2001). Beginning literacy with language: Young children learning at home and school. Baltimore: Paul Brookes Publishing.
Fisher, Edward P. (1992). The impact of play on development: A meta-analysis. Play and Culture, 5(2), 159-181.
Gordon NS, Burke S, Akil H, Watson SJ, and Panskepp J. 2003. Socially-induced brain ‘fertilization’: play promotes brain derived neurotrophic factor transcription in the amygdala and dorsolateral frontal cortex in juvenile rats. Neuroscience Letters 341(1): 17-20.
Greenough WT and Black JE. Induction of brain structure by experience: substrates for cognitive development. In: Gunnar MR, Nelson CA, eds. Minnesota Symposia on Child Psychology: Developmental Neuroscience. Vol 24. Hillside, NJ: Lawrence A Erlbaum Associates; 1992:155-200.
Huber R, Tonini G, and Cirelli C. 2007. Exploratory behavior, cortical BDNF expression, and sleep homeostasis. Sleep 30(2):129-39.
Lewis P, Boucher J, Lupton L and Watson S. 2000. Relationships between symbolic play, functional play, verbal and non-verbal ability in young children. Int J Lang Commun Disord. 35(1):117-27.
Pelligrini AD and Holmes RM. 2006. The role of recess in primary school. In D.Singer, R. Golinkoff, & K. Hirsh-Pasek (Eds.), Play=learning: How play motivates and enhances children’s cognitive and socio-emotional growth. New York: Oxford University Press.
Pepler DJ and Ross HS. 1981. The effects of play on convergent and divergent problem solving. Child Development 52(4): 1202-1210.
Stevenson HW and Lee SY. 1990.Contexts of achievement: a study of American, Chinese, and Japanese children. Monogr Soc Res Child Dev. 55(1-2):1-123.
Wyver SR and Spence SH. 1999. Play and divergent problem solving: Evidence supporting a reciprocal relationship. Early Education and Development, 10(4): 419 – 444
Wolfgang, Charles H.; Stannard, Laura L.; & Jones, Ithel. (2001). Block play performance among preschoolers as a predictor of later school achievement in mathematics. Journal of Research in Childhood Education, 15(2), 173-180.