The TEDS-M: Important issues, results a...

Until the last decade, international comparative studies in mathematics education focused primarily on the knowledge and beliefs of school students. Recently, the focus has shifted towards research on teachers and teacher education. The Teacher Education and Development Study in Mathematics (TEDS-M) is the first international large-scale study about (initial primary and secondary) mathematics teacher education with 17 countries participating. The importance of largescale
research in mathematics teacher education is mirrored in the decision to organize a Plenary Panel on TEDS-M at the 12th International Congress on Mathematical Education (ICME-12). This paper sketches the background of the study, main program features and major inputs of the Plenary Panel.