@inproceedings{pme336559-schmidtemotionsinprobl,
  title={Emotions in Problem Posing: a Case Study Assessing Students' Enjoyment and Anger Through Facial Expressions},
  author={Schmidt, Laura and Janina, Krawitz},
  booktitle={Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1},
  year={2026},
  pages={1299--1306},
  publisher={Psychology of Mathematics Education (PME)},
  issn={2790-3648}
}