Medverkande i utredning : Ola Helenius

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Skau, Simon, Karlsson, Jimmy, Åsberg Johnels, Jakob och Helenius, Ola, Visualizations during arithmetic tasks hamper performance and increase cognitive load in 9-year-olds : an fNIRS study, Frontiers in Psychology, 2026, 17, : Frontiers Media S.A.

Ahl, Linda Marie, Helenius, Ola, Østergaard, Maria Kirstine, Jankvist, Uffe Thomas och Prytz, Johan, Beyond Beliefs: Using Scheme Theory to Understand Implementation in Mathematics Education, Implementation and Replication Studies in Mathematics Education, 2025 nr 5, s. 216–241, : Brill Academic Publishers

Ahl, Linda, Helenius, Ola, Færch, Julie Vangsøe, Koichu, Boris, Misfeldt, Morten, Aguilar, Mario Sánchez och Jankvist, Uffe Thomas, The Current State of Implementation Research in Mathematics Education, Implementation and Replication Studies in Mathematics Education, 2025, 5 nr 1, s. 1–17

Helenius, Ola och Ahl, Linda, Conceptual fields and conceptual polysemy of mathematical objects with applications to the multiplicative conceptual field, Hiroshima Journal of Mathematics Education, 2025, 18, s. 51–69

Helenius, Ola och Ahl, Linda, Gérard Vergnaud in action, For the Learning of Mathematics, 2025, 45 nr 1, s. 50–55

Ahl, Linda Marie och Helenius, Ola, IS IT A FRACTION, OR SHALL I DIVIDE IT?, Proceedings of the International Group for the Psychology of Mathematics Education, 2024

Helenius, Ola och Ahl, Linda Marie, En bättre kursplan i matematik, 2024, Svenskt Näringsliv, Stockholm

Helenius, Ola och Ahl, Linda Marie, Läromedel på villovägar –en analys av den bristande vetenskapliga grunden för dagens svenska läromedel i matematik, 2024, Svenskt näringsliv, Stockholm

Teledahl, Anna, Kilhamn, Cecilia, Ahl, Linda Marie och Helenius, Ola, Defining and measuring quality in students’ mathematical writing : a systematic literature review, Mathematics Education Research Journal, 2024, : Springer

Tossavainen, Anne, Characterizing Prospective Elementary Teachers' Mathematical Knowledge for Teaching Fractions, 2024, Luleå tekniska universitet, Luleå

Tossavainen, Anne och Helenius, Ola, Student Teachers' Conceptions of Fractions: A Framework for the Analysis of Different Aspects of Fractions, Mathematics Teacher Education and Development, 2024, 26 nr 1, : Mathematics Education Research Group of Australasia

Tsygan, Julia och Helenius, Ola, Task frameworks and teacher practice: a comparative analysis, Mediating mathematics. Proceedings of Madif 14., Red. Häggström, J., Kilhamn, C., Mattsson, L., Palmér, H., Perez, M., Pettersson, K., Röj-Lindberg, A.-S. & Teledahl, A., 2024,, s. 97–107, Göteborg : SMDF

Aguilar, Mario Sanchez, Ahl, Linda Marie, Jankvist, Uffe Thomas och Helenius, Ola, Towards Characterization of Scale and Scaling in Implementation Research within Mathematics Education, Implementation and Replication Studies in Mathematics Education, 2023, 3 nr 1, s. 99–122, : Brill

Ahl, Linda Marie, Helenius, Ola, Aguilar, Mario Sánchez, Jankvist, Uffe Thomas, Misfeldt, Morten och Prytz, Johan, Implementation Research in Mathematics Education: A Systematic Mapping Review, Implementation and Replication Studies in Mathematics Education, 2023, 3 nr 2, s. 135–199, : Brill Academic Publishers

Ahl, Linda Marie och Helenius, Ola, New Demands on the Symbols and Formalism Competency in the Digital Era, Uffe Thomas Jankvist & Eirini Geraniou (eds.), Mathematical Competencies in the Digital Era, 2023,, s. 159–176, Cham : Springer International Publishing

Helenius, Ola och Ahl, Linda Marie, Hur bör man förändra kursplaner i matematik?, 2023, Svenskt näringsliv, Stockholm

Helenius, Ola, Jankvist, Uffe Tomas, Ahl, Linda Marie och Sánchez Aguilar, Mario, On the implicitness of ‘theory of change’ in implementations in mathematics education research, Proceedings of the Thirteenth Congress of the European Society for Research in Mathematics Education (CERME13)., 2023, Budapest : Alfréd Rényi Institute of Mathematics and ERME

Koljonen, Tuula, Helenius, Ola och Ahl, Linda Marie, Evaluating the enactment of a scripted teaching model, Proceedings of the Thirteenth Congress of the European Society for Research in Mathematics Education (CERME13), 2023, Budapest : Eötvös Loránd University and ERME

Nordqvist, David, Ahl, Linda Marie och Helenius, Ola, Piloting an innovation for developing students’ written mathematical communication competency, Proceedings of the Thirteenth Congress of the European Society for Research in Mathematics Education (CERME13)., 2023, Budapest : Alfréd Rényi Institute of Mathematics and ERME.

Sánchez Aguilar, Mario, Ahl, Linda Marie, Jankvist, Uffe Tomas och Helenius, Ola, A Delphi-inspired study on the concepts of large and small-scale projects in mathematics education research, Proceedings of the Thirteenth Congress of the European Society for Research in Mathematics Education (CERME13), 2023, Budapest : Alfréd Rényi Institute of Mathematics and ERME

Teledahl, Anna, Helenius, Ola, Kilhamn, Cecilia och Ahl, Linda Marie, Writing down the solution separate from solving the problem, For the Learning of Mathematics, 2023, 43 nr 2, s. 41–46, : FLM Publishing Association

Teledahl, Anna, Kilhamn, Cecilia, Helenius, Ola och Ahl, Linda Marie, Writing down the Solution Separate from Solving the Problem, For the Learning of Mathematics, 2023, 43 nr 2, s. 41–46

Tsygan, Julia, Helenius, Ola och Ahl, Linda Marie, Implementing a teaching model for enhancing students’ formal written mathematical communication., Proceedings of the Thirteenth Congress of the European Society for Research in Mathematics Education (CERME13)., 2023, Budapest : Alfréd Rényi Institute of Mathematics and ERME.

Ahl, Linda Marie, Helenius, Ola och Koljonen, Tuula, Gauging Fidelity to an Implemented Teaching Model through the Lens of the Documentational Approach to Didactics, Implementation and Replication Studies in Mathematics Education, 2022, 2 nr 1, s. 45–75, : Brill

Eriksson, Kimmo, Lindvall, Jannika, Helenius, Ola och Ryve, Andreas, Higher-achieving children are better at estimating the number of books at home: Evidence and implications, Frontiers in Psychology, 2022, 13, : Frontiers Media SA