The teaching of geography must in all ways conform to the methodology of geography. It is from a clear conception of this discipline that the role and training of the secondary school geographer teacher must be defined. At once pedagogue, educator, and geographer, he must master a variety of techniques to succeed in the first and most important part of his teaching, that of teaching the child and the adolescent how to observe geographic facts. By means of a convenient classification of three types of observation using the material at hand, the author outlines different teaching procedures, which, while not new, are very relevant.