In Jewish tradition, expectations of the ideal teacher are very high, especially because the teacher is a role model for the next generation. So how does one become an ideal teacher? What is the proper image of a teacher according to Jewish ethics? The present paper is an attempt to answer a series of questions about what makes an ideal teacher based on an analysis of hundreds of texts, including halachic rulings and responsa as well as documents that outline various communities' guidelines and demands. The Jewish texts make up the ethic mosaic that profiles the ideal teacher, who must work with the students as well as with their families. In view of the importance of the education as it has been understood by arbiters throughout the ages, we can appreciate why there should be zero tolerance for mistakes and inadequacies.