In this paper I discuss some results got in 1997/98 with Brazilian mathematics school teachers. The research was done to investigate their mathematical language as related to the concept of function. A dichotomy was detected between “formal” and “practical” language they used to express their own conceptions of function, as well as to teach their students this subject. Also, I found teachers’ conceptual images “shrinking” as soon as they were far from their colleges or universities programs.
Zuffi, Edna Maura
"On the Preparation of High School Mathematics Teachers," Humanistic Mathematics Network Journal: Iss.
25, Article 5.
Available at: http://scholarship.claremont.edu/hmnj/vol1/iss25/5