1Blatchford, P., S. Sharp. Breaktime and the school[M]. London: Routledge, 1994: 16, 16, 35.
2Blatchford, P. Social life in school pupils experience of breaktime and recess from 7 to 16 years [M]. London: Falmer. 1998: 38, 38, 26, 83, 122, 39, 56.
3Chmelynski, R. Is recess needed? [J]. Education Digest, 1998, (4): 64-71.
4MecNess, E. Reviews [J]. British Journal of Educational Studies, 1999, 47(4): 415-417.
5Pellcgrini, A. D., Bohn, C. M. The role of recess in chil- dren's cognitive performance and school adjustment[J]. Educational Re- searcher, 2005, 34( 1 ): 13-19.
6Evans, J. & Pellegrini, A. D. Surplus energy theory: An en- during but inadequate justification for school breaktime [J]. Education Review, 1997, 49(3): 229-236.
7Anderson-Butcher, D., Newsome, W. S. & Nay, S. Social skills intervention during elementary school recess: A visual analysis[J]. Children & School, 2003, 25(3): 135-146.
8Tortes, J. All work and no play: Advocates cite perils of shrinking recess [EB/OL]. From http://www.recordnet.com/apps/pbcs.dll/ article?AID=/20060409/NEWS01/604090345/1001, Retrived Sptember 8, 2010.
9Palmer, J. Tag still it on playground [N]. The Times-News, 2006. 11.
10Miller, T. R & Spicer, R. S. How safe are our schools? [J]. American Journal of Public Itealth, 1998, 88(3):413-418.
