1. Semiosis as a multimodal process;Arzarello F.;Revista latino americana de investigación en matemática educativa, RELIME,2006
2. Gestures as semiotic resources in the mathematics classroom
3. An Introduction to Design-Based Research with an Example From Statistics Education
4. Bartolini-Bussi, M. G., & Mariotti, M. A. (2008). Semiotic mediation in the mathematics classroom: Artifacts and signs after a Vygotskian perspective. In L. English (Ed.), Handbook of international research in mathematics education (second edition) (pp. 746–783). Routledge.
5. Børne- og undervisningsministeriet. (2019). Matematik - Fælles Mål. Børne- og Undervisningsministeriet Styrelsen for Undervisning og Kvalitet. Retrieved February 14 2020 from https://emu.dk/sites/default/files/2019-08/GSK%20-%20F%C3%A6lles%20M%C3%A5l%20-%20Matematik.pdf.