Ola Helenius
Professor
Unit for Subject Matter Education with specialization in Mathematic-
New Demands on the Symbols and Formalism Competency in the Digital
Era
Linda Marie Ahl, Ola Helenius
Uffe Thomas Jankvist & Eirini Geraniou (eds.), Mathematical Competencies in the Digital Era - 2023 -
Towards Characterization of Scale and Scaling in Implementation Research within Mathematics
Education
Mario Sanchez Aguilar, Linda Marie Ahl, Uffe Thomas Jankvist, Ola Helenius
Implementation and Replication Studies in Mathematics Education - 2023 -
Designing stakeholder scaffolding for implementing a teaching model at
scale
Ola Helenius
Proceedings of the Twelfth Congress of the European Society for Research in Mathematics Education (CERME12) - 2022 -
The documental approach of didactics as a gauge of fidelity of a teaching model
implementation
Tuula Koljonen, Ola Helenius, Linda Marie Ahl
Proceedings of the Twelfth Congress of the European Society for Research in Mathematics Education (CERME12) - 2022 -
Variables in early algebra: exploring didactic potentials in programming
activities
Cecilia Kilhamn, Kajsa Bråting, Ola Helenius, J. Mason
ZDM - the International Journal on Mathematics Education - 2022 -
Gauging Fidelity to an Implemented Teaching Model through the Lens of the Documentational Approach to
Didactics
Ola Helenius, Linda Marie Ahl, Tuula Koljonen
Implementation and Replication Studies in Mathematics Education - 2022 -
Quality in students’ writing in
mathematics
Anna Teledahl, Ola Helenius, Cecilia Kilhamn, Linda Marie Ahl
Proceedings of the Twelfth Congress of the European Society for Research in Mathematics Education (CERME12) - 2022 -
Impact and Design of a National-scale Professional Development Program for Mathematics
Teachers
J. Lindvall, Ola Helenius, K. Eriksson, A. Ryve
Scandinavian Journal of Educational Research - 2022 -
Higher-achieving children are better at estimating the number of books at home: Evidence and
implications
K. Eriksson, J. Lindvall, Ola Helenius, A. Ryve
Frontiers in Psychology - 2022 -
Proactive cognitive control, mathematical cognition and functional activity in the frontal and parietal cortex in primary school children: An fNIRS
study
Simon Skau, Ola Helenius, Kristoffer Sundberg, Lina Bunketorp Käll, Hans-Georg Kuhn
Trends in Neuroscience and Education - 2022 -
A stakeholder analysis of the development of a large scale professional development
program.
Ola Helenius
Implementation and Replication Studies in Mathematics Education - 2021 -
A framework for analyzing progress in concept knowledge in mathematics
textbooks
Linda Marie Ahl, Ola Helenius
Bringing Nordic mathematics education into the future. Preceedings of Norma 20. The ninth Nordic Conference on Mathematics Education Oslo, 2021 - 2021 -
Polysemy and the role of representations for progress in concept
knowledge
Linda Marie Ahl, Ola Helenius
Sustainable mathematics education in a digitalized world. Proceedings of MADIF 12 - 2021 -
Socioeconomic Status as a Multidimensional Predictor of Student Achievement in 77
Societies
K. Eriksson, J. Lindvall, Ola Helenius, A. Ryve
Frontiers in Education - 2021 -
Bill's Rationales for Learning Mathematics in
Prison
L. M. Ahl, Ola Helenius
Scandinavian Journal of Educational Research - 2021 -
Adults’ proportional reasoning in a volume scaling
situation
Ola Helenius, Linda Marie Ahl
TSG5, ICME: International congress of mathematics education - 2020 -
The case against coherence in mathematics
instruction
Ola Helenius, Linda Marie Ahl
TSG5, ICME: International congress of mathematics education - 2020 -
Reasoning about Representations: Effects of an Early Math
Intervention
Görel Sterner, Ulrika Wolff, Ola Helenius
Scandinavian Journal of Educational Research - 2020 -
Cultural Variation in the Effectiveness of Feedback on Students'
Mistakes
K. Eriksson, J. Lindvall, Ola Helenius, A. Ryve
Frontiers in Psychology - 2020 -
Surveying teachers’ conception of programming as a mathematics topic following the implementation of a new mathematics
curriculum
Morten Misfeldt, Atilla Szabo, Ola Helenius
Proceedings of the Eleventh Congress of the European Society for Research in Mathematics Education - 2019 -
Implementing alternative models for introducing
multiplication
Anna Ida Säfström, Ola Helenius, Linda Marie Ahl
Proceedings of the Eleventh Congress of the European Society for Research in Mathematics Education - 2019 -
Authority in students’ peer collaboration in statistics: an empirical study based on
inferentialism
A Seidouvy, Ola Helenius, M Schindler
Nordisk matematikkdidaktikk - Nordic Studies in Mathematics Education - 2019 -
Using TIMSS items to evaluate the effectiveness of different instructional
practices
K. Eriksson, Ola Helenius, A. Ryve
Instructional Science - 2019 -
Analyzing mathematical conceptualization – Expressive rationalism and the Piagetian
tradition
Ola Helenius, Linda Marie Ahl
EARLI SIG 17+25 - 2018 -
Data generation in statistics – both procedural and conceptual. An inferentialist
analysis
Abdel Seidouvy, Ola Helenius, Maike Schindler
Perspectives on professional development of mathematics teachers. Proceedings of MADIF 11 - 2018 -
The role of language representation for triggering students’
schemes
Linda Marie Ahl, Ola Helenius
Perspectives on professional development of mathematics teachers. Proceedings of MADIF11: the eleventh research seminar of the Swedish Society for Research in Mathematics Education, Karlstad, January 23–24 2018 - 2018 -
Why is calculating the average speed
difficult?
Linda Marie Ahl, Ola Helenius
Proceedings of the 42nd Conference of the International Group for the Psychology of Mathematics Education - 2018 -
Mathematics education research in Sweden: National presentation at PME
42
Cecilia Kilhamn, Ola Helenius, Peter Nyström
Proceedings of the 42nd Conference of the International Group for the Psychology of Mathematics Education (Vol. 1, pp. 273-297). E. Bergqvist, M. Österholm, C. Granberg, & L. Sumpter (Eds.) - 2018 -
Explicating professional modes of action for teaching preschool
mathematics
Ola Helenius
Research in Mathematics Education - 2018 -
Critical features of professional development programs: Comparing content focus and impact of two large-scale
programs
J. Lindvall, Ola Helenius, M. Wiberg
Teaching and Teacher Education - 2018 -
Digitala lärresurser i matematikundervisningen. Delrapport:
Skola.
Johan Wallin, Agneta Gulz, Anette Jahnke, Ola Helenius, Johan Wallin
2017 -
Digitala lärresurser i matematikundervisningen. Delrapport:
Förskola.
Agneta Gulz, Johan Wallin , Anette Jahnke, Ola Helenius
2017 -
ICT in mathematics education: the future and the realities. Proceedings of MADIF10. The tenth research seminar of the Swedish Society for Research in Mathematics Education. Karlstad, January 26–27,
2016.
Johan Häggström, Eva Norén, Jorryt van Bommel, Judy Sayers, Ola Helenius, Yvonne Liljekvist
2017 -
Mathematics Education in the Early
Years
Tamsin. Meaney, Ola Helenius, Maria L. Johansson, Troels. Lange, Anna. Wernberg
2016 -
Matematikdidaktik i
förskolan
Ola Helenius, Maria L. Johansson, Troels Lange, Tamsin Meaney, Anna Wernberg
2016 -
Measuring temperature within the didaktic space of
preschool
Ola Helenius, Maria L Johansson, T Lange, Tamsin Meaney, Anna Wernberg
Nordisk matematikkdidaktikk - Nordic Studies in Mathematics Education - 2016 -
What’s there in an n? Investigating contextual resources in small group discussions concerning an algebraic
expression.
Elisabeth Rystedt, Cecilia Kilhamn, Ola Helenius
Nordisk matematikkdidaktikk - Nordic Studies in Mathematics Education - 2016 -
Moving in and out of contexts in collaborative reasoning about
equations
Elisabeth Rystedt, Ola Helenius, Cecilia Kilhamn
Journal of Mathematical Behavior - 2016 -
Behavior and neuroimaging at baseline predict individual response to combined mathematical and working memory training in
children
F. Nemmi, E. Helander, Ola Helenius, R. Almeida, M. Hassler, P. Rasanen, T. Klingberg
Developmental Cognitive Neuroscience - 2016 -
National-scale professional development in Sweden: theory, policy,
practice
Jesper Boesen, Ola Helenius, Bengt Johansson
ZDM - the International Journal on Mathematics Education - 2015 -
Dynamisk representation med digitala
verktyg
Thomas Lingefjärd, Malmö Högskola Håkan Sollervall, Malmö Högskola Ulrika Ryan, Ola Helenius
Skolverket , 2015. , 11 s. - 2015 -
Orkestrering av IKT-stödd
matematikundervisning
Malmö Högskola Håkan Sollervall, Ola Helenius, Thomas Lingefjärd
Skolverket , 2015. - 2015 -
IKT i
matematikundervisningen
Ola Helenius, Malmö Högskola Håkan Sollervall, Thomas Lingefjärd
Skolverket , 2015. , 5 s. - 2015 -
Lärande och digitala
verktyg
Thomas Lingefjärd, Malmö Högskola Håkan Sollervall, Ola Helenius
Skolverket , 2015. , 8 s. - 2015 -
Undersökande
arbetssätt
Thomas Lingefjärd, Malmö Högskola Håkan Sollervall, Ola Helenius
Skolverket , 2015. , 6 s. Lärportalen för matematik Grundskola åk 7-9, - 2015 -
Matematikundervisning i
praktiken
Karin Wallby, Ulrica Dahlberg, Ola Helenius, Johan Häggström, Anders Wallby
2014 -
Godkänt är inte bra
nog
Ola Helenius
Origo - 2014 -
Tänka, resonera och räkna i
förskoleklass
Görel Sterner, Ola Helenius, Karin Wallby
2014 -
Developing mathematical competence: From the intended to the enacted
curriculum
Jesper Boesen, Ola Helenius, Ewa Bergqvist, Tomas Bergqvist, Johan Lithner, Torulf Palm, Björn Palmberg
Journal of Mathematical Behavior - 2013 -
Tester på väg att bli Big
Business
Ola Helenius
Origo - 2013 -
Förskolans
matematik
Elisabet Doverborg, Ola Helenius, Görel Sterner, Lena Trygg, Karin Wallby
2013 -
IKT inte självklart i
matten
Ola Helenius
Origo - 2013 -
Information från NCM: Leken i förskolans
läroplan
Ola Helenius
Nämnaren - 2012 -
Hedda
mäter
Ola Helenius
Nämnaren - 2012 -
På kurs med nya
planer
Ola Helenius, Anette Jahnke
Nämnaren - 2011 -
Tillväxt
Ola Helenius
Bergius, Berit, Emanuelsson, Göran, Emanuelsson, Lillemor et al. (red.) (2011). Matematik - ett grundämne - 2011 -
Miniräknaren - en retrospektiv
schematisering
Ola Helenius
Bergius, Berit, Emanuelsson, Göran, Emanuelsson, Lillemor et al. (red.) (2011). Matematik - ett grundämne - 2011 -
Relating practices and research in mathematics
education
Ola Helenius
Nordic Studies in Mathematics Education - 2010 -
Information från NCM: Förtydligande av förskolans
läroplan
Elisabet Doverborg, Görel Sterner, Ola Helenius
Nämnaren - 2010 -
Räkna på
hawaiianska
Ola Helenius
Nämnaren - 2010 -
Omslagsbild:
Cikador
Ola Helenius
Nämnaren - 2009 -
Matematiken - var finns
den?
Ola Helenius, Lars Mouwitz
Nämnaren - 2009 -
Relating practice and research in mathematics
education
Ola Helenius
Nordisk matematikkdidaktikk - 2009 -
Améliorer l'enseignement des mathématiques : le cas de la
Suède
Jesper Boesen, Ola Helenius
Revue internationale d'éducation - Sevres - 2009 -
Matematiken - var finns
den?
Ola Helenius, Lars Mouwitz
2009 -
Problemlösning med
resultat
Ola Helenius
Nämnaren - 2008 -
Virka stora
pi
Ola Helenius
Nämnaren - 2008 -
Människor och matematik - läsebok för
nyfikna
Ola Helenius, Karin Wallby
2008 -
Kompetenser och
matematik
Ola Helenius
Nämnaren - 2006 -
Spara och
återanvänd
Ola Helenius
Nämnaren - 2005 -
Hur många ryms i klassrummet? En introduktion till
areabegreppet
Ola Helenius, Görel Sterner
Nämnaren - 2005 -
Nybörjarstudenternas resultat - vad säger de
oss?
Ola Helenius
Nämnaren - 2005 -
Problemlösning på bred
front
Ola Helenius, Johan Häggström
Nämnaren - 2004 -
Demokratisk
modellering
Ola Helenius
Nämnaren - 2004 -
Educating for the future - proceedings from an international symposium on mathematics teacher
education
Ola Helenius, Rudolf Strässer, Gerd Brandell, Barbro Grevholm
2004 -
On the Picard Group of Integer Group
Rings
Ola Helenius
2002 -
Fine structure of class groups Cl^(p) Q(zeta_n) and the Kervaire-Murthy conjectures
II
-
Fine structure of class groups Cl^(p) Q(zeta_n) and the Kervaire-Murthy
conjectures
-
On the Picard group of some polynomial
rings
Ola Helenius
2001 -
Picard groups of integer group rings and units in cyclotomic
fields
-
Unit bases in integer group rings and the Kervaire-Murthy
conjectures
-
On the Kervaire-Murthy
conjectures
-
Kummer's lemma and Picard groups of integer group
rings
Ola Helenius
1999