Research has found that the quality of teachers and their teaching are the most important school-related factors in student outcomes (Darling-Hammond, 2000, OECD, 2005). Teachers are also at the front line of any education reform movement, ideally providing input when policies are being developed, and tasked with understanding and implementing the new vision (OECD, 2005, Jensen et al., As a representative of Thailand’s Office of the Basic Education Commission (OBEC) said to the review team, “teachers are the heart of the matter”.