The current study presents part of the results of a pilot study that aimed the development of a profile for a teacher that is appreciated by school and university students. For the investigation, a 40 items questionnaire based on literature was used. The questionnaire was applied to 76 subjects (school and undergraduate students). The results highlight few differences between the school and the university students' opinions regarding the personal and professional characteristics of the teacher. The experience, the good intention, the big amount of knowledge and the capacity of admitting a mistake are some of the qualities valued by the vast majority of the subjects while the superiority attitude of a teacher generates differences between school and university students, the school students admitting this attitude in a higher percentage than university students. The results of this study suggest a necessity for educating teachers so that they fit the expectations of their students. [See Part II of Pilot Study in ERIC at EJ1053277.]