Use of textbooks in the work of the teacher : the teaching of mathematics at the elementary school* 
This paper presents the uses that experienced elementary teachers make of textbooks in mathematics, in order to consider the following questions : What are the characteristics of the teacher’s relationship with the textbook and the teacher’s use of the textbook ? What factors may induce change or stability in the teacher’s relationship to the textbook ? A survey based on individual semi-directive interviews leads to our main result : the existence of the textbook as instrumental in shaping the teacher’s work. This result allows us to give an original perspective on teachers’ professional development.