Public criticism of teachers has put pressure on teacher educators to prepare their students better. Any process to strengthen teacher education programs must include a careful study of student teaching since it is usually the final education course taken by students and the most influential field experience in a teacher education program. Many teacher education programs use student teaching as the primary exit evaluation of student competencies. Yet factors such as questionable measurement instruments and untrained evaluators prevent effective evaluation. This digest discusses the purpose of student teacher evaluation, criteria, measurement tools, evaluators, and elements of success. (JD)