The Kenyan Government, being concerned about the quality of school education, is attempting to increase teacher effectiveness and student learning. To achieve these goals, current in-service programs need to be improved for all head teachers and teachers. Also, the role of the head teacher in promoting relevant teacher development requires greater recognition and administrative training. Organizations such as the Kenya Education Staff Institute need to be more involved in providing up-to-date staff development for all educational administrators and other educators. More attention also must be paid to effective induction, internships, strategic staff placements, financing, collaboration among provider organizations, and opinions of teachers concerning in-service needs. Head teachers can do much to improve teaching and learning by using professional formative evaluation of their teachers.