Background to The Study
Teachers’ quality has been the focus of considerable debated worldwide since the middle of 20th century. Riovkin, Hanushek and Kain (1998), demonstrated in a study that the influence of teachers’ quality on students achievement is many times greater than any other commonly observed variable such as home-background, conducive class environment, etc.
Teachers’ quality is a topic with high priority. Teacher qualities differ considerably, between countries and also between states. The National Policy on Education, (Federal Republic of Nigeria, Revised 2004) while stressing the importance of teacher quality in curriculum implementation noted that no nation’s educational system can rise above the quality of her teachers. Teachers are central to any consideration of schools and majority of educational policy focus directly or indirectly on the role of teachers. Moreover, parents, teachers and administrators emphasize repeatedly the fundamental role that teachers play in comparison to other determinant’s of academic performance. Teachers play in comparison to other determinant’s of academic performance. Teachers are important in any educational system because the quality of teachers in any educational system determines to a great extent the quality of the system itself.
For many years, educators and researchers have debated which school variables influence student achievement. As policy makers become more involved in school reform, this question takes on new importance since their initiatives rely on presumed relationship between various educational related factors like class size, teacher quality, school size, etc. Peter (1997), stated that “quality is the basic indispensable feature of a thing”. For example the characteristics of high quality science teachers relates to those attributes that enhances the fitness and efficiency of that teacher in performing the duties that are associated with science education.