This chapter explains the overview of teacher education; teacher education, technological approach, and learning materials; the perspectives on teacher educator; the perspectives on novice teacher; teacher education and teacher competence; teacher education, teacher identity, and social justice; and the importance of teacher education in global education. Teacher education is a continuous process, starting with preservice teacher education, followed by in-service education and continuing education. The aim of teacher education is to create a pedagogically thinking teacher with adequate amounts of theoretical background knowledge and a reflectively-critical attitude toward the challenges encountered in the teaching profession. Technology pedagogy, the 21st century skills, and ethical approaches are very important for preservice teacher practices. The chapter argues that encouraging teacher education has the potential to improve educational performance and gain sustainable competitive advantage in global education.