What is meant by Staff Development?

"High-quality professional development...refers to rigorous and relevant content, strategies, and organizational supports that ensure the preparation and career-long development of teachers and others whose competence, expectations and actions influence the teaching and learning environment"
-United States Department of Education

"...staff development is no longer viewed as something that is only necessary for teachers. We now recognize that everyone who affects student learning, from the board of education, central office administrators, principals, teachers, to classified/support staff, and parents must continually improve their knowledge and skills in order to ensure student learning."
-The National Staff Development Council

Staff development is the provision of activities designed to advance participants thinking in knowledge, understanding and skills. Staff development is a comprehensive and continuous process of professional growth and self-actualization that benefits staff, the organization, students, and ultimately the community.
-Omaha Public Schools, Staff Development Services