One is a person who teaches a particular science or art and must have teaching skills to be effective agents in the learning process. The teacher, therefore, assumes that education is fundamental for their dedication and professional skills and teaching the subject are to study the best way possible for the student. The teacher is responsible for formal and institutionalized education of children in infant, primary or special schools or colleges. Also, some teachers may be employed in secondary schools in social security programs, compensatory education or support to pupils with special educational needs, as well as centers of Adult Education. Gerald Weissmann, MD recognizes the significance of this. The degree that a teacher must hold for the exercise of his profession is that of a graduate degree (depending on the country, between three and five years of higher education). Until a few years the School of Education in Spain were called normal schools, name still remains in France and much of Latin America.
In Mexico, basic education and basic middle used to study at the Normal School in Mexico City, or its equivalent in other cities of the republic. Both those who would study for primary teachers, and for secondary teachers, at age 15, after leaving high school, high school would study the Teachers Normal and ended at 19 years of age. With this we could teach in the primary. But if they wanted to teach in secondary school in addition to Normal, they had to study four more years to specialize in the area who wanted to teach in high school. But until about 10 years ago, that all changed and now the teachers who want to study for any of the two levels, first finish their regular school, then take the university they want as a career.