I am an Associate Professor in Mathematics Education and research leader at the Faculty of Education. I completed my PhD at Aarhus University 2018-2021 in the field of digital technologies in mathematics education, focusing mainly on lower secondary school mathematics education. I joined the University of The Faroe Islands in 2021.

My main research interests involve digital technologies in mathematics education, mathematical competencies and design research. I have also engaged in the areas of preservice teacher education, mathematical knowledge for teaching, mathematics teacher competencies, networking of theories and digital representations of mathematical objects. Additionally, in PISA related work, I have focused on mathematical literacy and curriculum studies.

Preservice teacher education courses on BA-level in mathematics education: Mathematics in primary and lower secondary school, Number systems, Arithmetics and Algebra, Geometry, Probability and Statistics Education. Supervision of BA-thesis.

Selected recent publications:

• Højsted, I. H., & Mariotti, M. A. (2023). Analysing signs emerging from students’ work on a designed dependency task in dynamic geometry. International Journal of Mathematical Education in Science and Technology. https://doi.org/10.1080/0020739X.2023.2246979
• Mariotti, M.A., Trgalová, J., Maracci, M., Højsted, I.H. (2023). Resources Promoting Digital Tools Integration: Design Principles. In: Pepin, B., Gueudet, G., Choppin, J. (eds) Handbook of Digital Resources in Mathematics Education. Springer International Handbooks of Education. Springer, Cham. https://doi.org/10.1007/978-3-030-95060-6_38-1
• Højsted, I. H. (2023). Proof as an explanation of dynamic geometry generated conjectures – task design in a toolbox puzzle approach. Nordic Studies in Mathematics Education, 28(3-4), 157–176.
• Højsted, I. H., Geraniou, E., & Jankvist, U. T. (2023). Teachers’ Facilitation of Students’ Mathematical Reasoning in a Dynamic Geometry Environment: An Analysis Through Three Lenses. In U. T. Jankvist, & E. Geraniou (Eds.), Mathematical Competencies in the Digital Era (1 ed., pp. 271–292). (Mathematics Education in the Digital Era ; Vol. 20). Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-10141-0_15
• Højsted, I. H., & Mariotti, M. A. (2023). Mathematical Representation Competency in the Era of Digital Representations of Mathematical Objects. In U. T. Jankvist, & E. Geraniou (Eds.), Mathematical Competencies in the Digital Era (1 ed., pp. 139–157). (Mathematics Education in the Digital Era; Vol. 20). Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-10141-0_8