
The main goal of this essay is to understand why and how a mathematican, very much dedi-cated to research in theoretical mathematics might change his field to research in mathema-tics education. In order to understand a change, it is necesary to probe a little deeply into how it was before and also after the change; how I came to the point of changing, how I made the transformation and where I went with my new professional life. To do all this, I intend to ex-plore my own experiences in the hopes that through the introspection of an individual we might learn something about the situation for everyone.