Norma PresmegLuis RadfordWolff-Michael RothGert Kadunz2025-10-202025-10-202016978-3-319-31370-2https://doi.org/10.1007/978-3-319-31370-2https://link.springer.com/openurl?genre=book&isbn=978-3-319-31370-2http://bibliovirtual.umar.mx:4000/handle/123456789/1036Libro electrónico.This volume discusses semiotics in mathematics education as an activity with a formal sign system, in which each sign represents something else.en-USBook