@inproceedings{pme336559-andreassenupperseconda,
  title={UPPER SECONDARY STUDENTS’ IMPASSES DURING JOINT PROBLEM-SOLVING IN A “THINKING CLASSROOM”},
  author={Andreassen, Fannie Skoland and Nortvedt, Guri A. and Selling, Alexander Jonas Viktor},
  booktitle={Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1},
  year={2026},
  pages={59--66},
  publisher={Psychology of Mathematics Education (PME)},
  issn={2790-3648}
}