1National Science Resources Center .Science and Technology for Children and Science and Technologv Concept for Middle Schools[MI. Carolina Biologicai Supply Company, 2000.
1Neurath O, Camap R, Morris C, (eds) International encyclopedia of united science(Vol 1) . Chicago: The University of Chicago Press, 1995 I. 378.
2Hurd P D, Why we must transtorm science education, educational leadership. 1991, 34.
3Su Z, Su J. Goldstein S. Teaching and learning science in American and Chinese high schools: A comparative study. Comparative Education, 1994. 30(3): 0, 260, 262, 262,263,264, 265, 26.5,265
4Wang J. Companative study of student science achievement between United States and China. Journal of Research in Science Teaching, 1998, 35(3):333
