231.145  Purpose of instructional personnel certification.--It is the intent of the Legislature that school personnel certified in this state possess the credentials, knowledge, and skills necessary to provide quality education in the public schools. The purpose of school personnel certification is to protect the educational interests of students, parents, and the public at large by assuring that teachers in this state are professionally qualified. In fulfillment of its duty to the citizens of this state, the Legislature has established certification requirements to assure that educational personnel in public schools possess adequate pedagogical knowledge and relevant subject matter competence and can demonstrate an acceptable level of professional performance. Further, the Legislature has established a certificate renewal process which promotes the continuing professional improvement of school personnel, thereby enhancing public education in all areas of the state.