The purpose of this paper is to examine the ideal method of contents constitution, teaching, and evaluation of the lecture, in a charge of a new lesson subject. Author report the following supplementary contents that present and felt in the lesson called "introduction to teaching profession". 1. Educational environment is changing as follows : 1) The number of student / children whom many teachers cannot understand are increasing. 2) Society is changing from a value system emphasizing "equality" to emphasizing "freedom" into a value system. Vitalization of education is planned by stimulating of such a social "competition". 3) "Latitude" is invented through careful selection of school curriculum, but it does not lead to life with latitude even for the child. 4) Information technology makes progress, but utilizing it in a classroom has not progressed yet. 5) Although the view of scholastic ability is changed, it is fidgety "ability to live". 2. The relationship between the educational reform and school administration is changing as follows : 1) There is necessity to develop independent and autonomous management. 2) The performance problem of teaching staff are increasing. 3) Teaching/learning activities corresponding to each of the children are requested. 4) The crisis called "scholastic ability decline" is appearing. 5) The new problem action of the children is appearing. 6) The parents that are non-educational and critical to school education are increasing. 3. Contradictions that author felt in the lectures : 1) The difficulty of the cultivating of the sense of duty, sense of responsibility as a teacher. 2) The difficulty that impresses the service order. 3) The severity of recruitment situation. 4) The need of relation making with the student. 5) The non-opportunity of the capacity formation corresponding to the school scene. 6) The need of creative practice competence. 4. Keywords that author always emphasized in the lectures. 1) A teacher is a person of integrity. 2) A teacher is a supporter of learning. 3)