7Gao Lingbiao(2004). A Study of Chinese Teachers' Conceptions of Teach - ing. Hubei Education Press , p264.
8Education Commission of the States (ECS): In pursuit of quality teaching: five key strategies for policymakers, denver, ECS, 2000
9Zhongyi Yuan:An analysis of the ongoing professional development needs of principals identified in the initial year of a longitudinal study. December 1998