My postdoctoral project is guided by two principal research questions:
(1) What constitutes “fractions” within school mathematics in a specific country?
(2) How are language and praxeology interconnected in the teaching and learning of fractions?
The second question also includes a methodological discussion on how the language dimension can be modeled within the ATD. I present an overview of my project and primary findings based on a textbook analysis from two countries: France and Japan.