Tinne Hoff Kjeldsen

Tinne Hoff Kjeldsen

Professor, Deputy Head of Department, Professor

Member of:

  • Didactics of Mathematics


  1. 2024
  2. Accepted/In press

    From duality in mathematical programming to Fenchel duality and convex analysis: Duality as a force of inspiration in the creation of new mathematics

    Kjeldsen, Tinne Hoff, 2024, (Accepted/In press) Preliminary title: Duality, an archetype of mathematical thinking. Krömer, R., Haffner, E. & Volkert, K. (eds.). Birkhäuser Verlag, 27 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  3. 2023
  4. Published

    A Problem-Oriented Multiple Perspective Way into History of Mathematics – What, Why and How Illustrated by Practice

    Kjeldsen, Tinne Hoff, 2023, The Richness of the History of Mathematics. Chemla, K., Ferreiròs, J., Ji, L., Scholz, E. & Wang, C. (eds.). Springer, p. 3-26 24 p. (Archimedes, Vol. 66).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  5. Published

    Mathematical Modelling and Digital Tools —And How a Merger Can Support Students’ Learning

    Jessen, Britta Eyrich & Kjeldsen, Tinne Hoff, 2023, Mathematical Competencies in the Digital Era. Jankvist, U. T. & Geraniou, E. (eds.). Cham: Springer, p. 99-118 20 p. (Mathematics Education in the Digital Era MEDE, Vol. 20).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  6. 2022
  7. Published

    Developing historical awareness through the use of primary sources in the teaching and learning of mathematics

    Kjeldsen, Tinne Hoff, Clark, K. M. & Jankvist, U. T., 2022, Mathematics and its Connections to the Arts and Sciences (MACAS): 15 Years of Interdisciplinary Mathematics Education. Michelsen, C., Beckmann, A., Freiman, V., Jankvist, U. T. & Savard, A. (eds.). Cham: Springer, p. 45-68 24 p. (Mathematics Education in the Digital Era MEDE, Vol. 19).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  8. Published

    Three past mathematicians’ views on history in mathematics teaching and learning: Poincaré, Klein, and Freudenthal

    Jahnke, H., Jankvist, U. T. & Kjeldsen, Tinne Hoff, 2022, In: Z D M. 54, p. 1421-1433

    Research output: Contribution to journalJournal articlepeer-review

  9. 2021
  10. Hvad er matematik?

    Kjeldsen, Tinne Hoff, 2021, Håndbog om matematik i grundskolen: Læring, undervisning og vejledning. Andersen, M. W. & Weng, P. (eds.). 2 ed. Dansk Psykologisk Forlag, p. 12-24

    Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

  11. Published

    Mathematical modelling in scientific contexts and in Danish upper secondary education: are there any relations?

    Jessen, Britta Eyrich & Kjeldsen, Tinne Hoff, 2021, In: Quadrante. 30, 2, p. 37-57 21 p.

    Research output: Contribution to journalJournal articlepeer-review

  12. 2020
  13. Published

    Episodes of interferences of War and Mathematics in the Life and Work of Werner Fenchel

    Kjeldsen, Tinne Hoff, 2020, In: Amazônia. 16, 35, p. 15-27

    Research output: Contribution to journalJournal articlepeer-review

  14. Published

    History of Mathematics in Mathematics Education – An Overview.

    Clark, K. M., Kjeldsen, Tinne Hoff, Schorcht, S. & Tzanakis, C., 2020, In: Mathematica Didactica. 42, p. 1-26 26 p.

    Research output: Contribution to journalJournal articlepeer-review

  15. Published

    Living by Numbers: The Strategies and Life Stories of Mid-Twentieth Century Danish Women Mathematicians

    Kjeldsen, Tinne Hoff, Fajstrup, L. & Gjerløff, Anne Katrine, 2020, Against All Odds: Women's Ways to Mathematical Research Since 1800. Kaufholz-Soldat, E. & Oswald, N. M. R. (eds.). Springer, p. 249-277 (Women in the history of philosophy and sciences; No. 6).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  16. 2019
  17. Published

    A Multiple Perspective Approach to History of Mathematics: Mathematical Programming and Rashevsky's Early Development of Mathematical Biology in the Twentieth Century.

    Kjeldsen, Tinne Hoff, 2019, Interfaces between Mathematical Practices and Mathematical Education. Schubring, G. (ed.). Springer, p. 143-167 25 p. (International Studies in the History of Mathematics and its Teaching).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  18. Published

    Proceedings of the Eighth European Summer University on History and Epistemology in mathematics Education (ESU-8)

    Barbin, E. (ed.), Jankvist, U. T. (ed.), Kjeldsen, Tinne Hoff (ed.), Smestad, B. (ed.) & Tzanakis, C. (ed.), 2019, Oslo Metropolitan University. 885 p. (OsloMet Skriftserie, Vol. 11).

    Research output: Book/ReportAnthologypeer-review

  19. 2018
  20. Published

    Inquiry reflective learning environments and the use of the history of artifacts as a resource in mathematics education

    Johansen, Mikkel Willum & Kjeldsen, Tinne Hoff, Apr 2018, Mathematics, Education and History : Towards a Harmonious Partnership. Clark, K. M., Kjeldsen, T. H., Schorcht, S. & Tzanakis, C. (eds.). Springer, p. 27-42 16 p. (ICME-13 Monographs).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  21. Published

    Creating inquiry-reflective learning environments in mathematics through history and original sources

    Kjeldsen, Tinne Hoff, 2018, Circulation: mathématiques, historie, enseignement. Auvinet, J., Moussard, G. & Saint Raymond, X. (eds.). PULIM Presses universitaires de Limoges, p. 13-29 17 p. (Savoirs scientifiques & Pratiques d'enseignement).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  22. Published

    Findes der skønhed i leksikografi?

    Kjeldsen, Tinne Hoff, Pálfi, L. & Wolgast, K., 2018, In: Fund og Forskning i Det Kongelige Biblioteks Samlinger. 57, p. 221-239 19 p.

    Research output: Contribution to journalJournal articlepeer-review

  23. Published

    Integrating History and Epistemology of Mathematics in Mathematics Education

    Kjeldsen, Tinne Hoff, Clark, K., Schorcht, S. & Tzanakis, C., 2018, Mathematics, Education and History: Towards a Harmonius Partnership. Kjeldsen, T. H., Clark, K. M., Schorcht, S. & Tzanakis, C. (eds.). Springer, p. 1-23 23 p. (ICME-13 Monographs).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  24. Published

    Interdisciplinary Problem Oriented Project Work - a Learning Environment for Mathematical Modelling

    Blomhøj, M. & Kjeldsen, Tinne Hoff, 2018, Evaluierte Lernumgebungen zum Modellieren : a Learning Environment for Mathematical Modelling. Blum, W. & Schukajlow, S. (eds.). Wiesbaden: Springer, p. 11-29

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  25. Published

    Mathematics, Education and History: Towards a Harmonious Partnership

    Clark, K. M. (ed.), Kjeldsen, Tinne Hoff (ed.), Schorcht, S. (ed.) & Tzanakis, C. (ed.), 2018, Springer. (ICME-13 Monographs).

    Research output: Book/ReportAnthologypeer-review

  26. 2017
  27. Published

    An early Debate in Mathematical Biology and Its Value for Teaching: Rashevsky's 1934 Paper on Cell Division

    Kjeldsen, Tinne Hoff, 2017, In: The Mathematical Intelligencer. 39, 2, p. 36-45

    Research output: Contribution to journalJournal articlepeer-review

  28. Published

    Being a Female Mathematician in the 20th century seen through the eyes of four Danes

    Fajstrup, L., Kjeldsen, Tinne Hoff & Gjerløff, Anne Katrine, 2017, In: Oberwolfach Reports. 2017, 2, p. 99-102 4 p.

    Research output: Contribution to journalConference article

  29. Published

    Mini-workshop:VWomen in Mathematics: Historical and Modern Perspectives

    Kjeldsen, Tinne Hoff, Oswald, N. & Tobies, R., 2017, In: Oberwolfach Reports. 14, 1, p. 83-85

    Research output: Contribution to journalConference article

  30. Published
  31. Published

    Students' video tutorials as a means for supporting and analysing their reflections on the limit concept

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2017, Proceedings of the Tenth Congress of the European Society for Research in Mathematics Education (CERME10, February 1-5, 2017). Dublin, Ireland. Dooley, T. & Gueudet, G. (eds.). Dublin, Irland: DCU Institute of Education and ERME, p. 3833-3840

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  32. Published

    Topic Study Group 25: The role of history of mathematics in mathematics education

    Tzanakis, C., Wang, X., Clark, K., Kjeldsen, Tinne Hoff & Schorcht, S., 2017, Proceedings of the 13th International Congress on Mathematical Education: ICME-13. Kaiser, G. (ed.). Springer, p. 491-495 (ICME-13 Monographs).

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  33. 2016
  34. Published

    Enacting Inquiry Learning in Mathematics through History

    Kjeldsen, Tinne Hoff, 2016, Proceedings of the 2016 ICME Satellite Meeting of the International Study Group on the Relations Between the History and Pedagogy of Mathematics. Radford, L., Furinghetti, F. & Hausberger, T. (eds.). IREM de Montpellier, p. 453-464

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  35. Published

    History of Mathematics in Mathematics Education: Recent devlopments

    Clark, K., Kjeldsen, Tinne Hoff, Schorcht, S., Tzanakis, C. & Wang, X., 2016, Proceedings of the 2016 ICME Satellite Meeting of the International Study Group on the Relations Between the History and Pedagogy of Mathematics. Radford, L., Furinghetti, F. & Hausberger, T. (eds.). IREM de Montpellier, p. 135-179

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  36. Published

    History of Mathematics: Models and Visualization in the Mathematical and Physical Sciences: Introduction by the Organisers

    Gray, J., Hashagen, U., Kjeldsen, Tinne Hoff & Rowe, D., 2016, In: Oberwolfach Reports. 12, 4, p. 2767-2769

    Research output: Contribution to journalConference article

  37. Published

    New Medias – New Ways: Students’ learning in a calculus course through publication of own mathematical products

    Kjeldsen, Tinne Hoff, 2016, Teaching for Active Learning TAL2015: Proceedings fra Konferencen TAL2015 på Syddansk Universitet, 2015. Troelsen, R. (ed.). Syddansk Universitet, p. 14-19

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsCommunication

  38. Published

    Nicolas Rashevsky and Alfred Lotka: Different modelling strategies in the beginning of mathematical biology in the early 20th century

    Kjeldsen, Tinne Hoff & Loetggers, A., 2016, In: Oberwolfach Reports. 12, 4, p. 2779-2783

    Research output: Contribution to journalConference article

  39. Published

    Original Sources in the Mathematical Classroom

    Barnett, J. H. & Kjeldsen, Tinne Hoff, 2016, Proceedings of the 2016 ICME Satellite Meeting of the International Study Group on the Relations Between the History and Pedagogy of Mathematics. Radford, L., Furinghetti, F. & Hausberger, T. (eds.). IREM de Montpellier, p. 205-207

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  40. Published

    Problembaseret undervisning i forskning: med eksplicit fokus på professional adfærd

    Kjeldsen, Tinne Hoff & Dahlgaard, K., 2016, Teaching for Active Learning TAL2015: Proceedings fra Konferencen TAL2015 på Syddansk Universitet, 2015. Troelsen, R. (ed.). Syddansk Universitet, p. 26-31

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsCommunication

  41. Published
  42. 2015
  43. A Critical Review of Key Concepts in PPL

    Andersen, A. S. & Kjeldsen, Tinne Hoff, 2015, The Roskilde Model. Andersen, A. S. & Heilesen, S. B. (eds.). Springer VS, p. 17-36 20 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  44. Case Analysis of some Critical Factors in Relation to Learning Outcomes of PPL: The Formation of Flint

    Kjeldsen, Tinne Hoff & Andersen, A. S., 2015, The Roskilde Model. Andersen, A. S. & Heilesen, S. B. (eds.). Springer VS, p. 37-45 9 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  45. History and Epistemology in Mathematics Education: Proceedings of the Seventh European Summer University

    Kjeldsen, Tinne Hoff (ed.), Jankvist, U. (ed.) & Barbin, E. (ed.), 2015, Danish School of Education, Aarhus University.

    Research output: Book/ReportAnthologypeer-review

  46. Published

    Interactions Between Mathematics and Physics: The History of the Concept of Function—Teaching with and About Nature of Mathematics

    Kjeldsen, Tinne Hoff & Lützen, Jesper, 2015, In: Science & Education. 24, 5, p. 543-559

    Research output: Contribution to journalJournal articlepeer-review

  47. Published

    Mathematics as a tool-driven practice: the use of material and conceptual artefacts in mathematics

    Kjeldsen, Tinne Hoff & Johansen, Mikkel Willum, 2015, History and Epistemology in Mathematics Education Proceedings of the Seventh European Summer University ESU 7. Barbin, E., Jankvist, U. T. & Kjeldsen, T. H. (eds.). Danish School of Education, p. 79-95

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  48. Published

    Modelling: from theory to practice

    Jessen, Britta Eyrich, Kjeldsen, Tinne Hoff & Winsløw, Carl, 2015, Proceedings of the Ninth Congress of the European Society for Research in Mathematics Education. Krainer, K. & Vondrová, N. (eds.). Prague, Czech Republic, p. 876-882 10 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  49. Modelling: from Theory to Practice

    Kjeldsen, Tinne Hoff, Jessen, B. E. & Winsløw, C., 2015, (Accepted/In press) In: Proceedings of the Congress of the European Society for Research in Mathematics Education. 9, 10 p.

    Research output: Contribution to journalConference articlepeer-review

  50. The Decay of Alcohol and THC in the Human Body

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2015, Mathematical Lessons Learned from Across the World, Grades 7-12. Lott, J. W. & Lott, C. J. (eds.). National Council of Teachers of Mathematics, p. 107-112 6 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  51. Theoretical Foundation of PPL at Roskilde University

    Andersen, A. S. & Kjeldsen, Tinne Hoff, 2015, The Roskilde Model. Andersen, A. S. & Heilesen, S. B. (eds.). Springer VS, p. 3-16 14 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  52. 2014
  53. A Historical View of Nonlinear Programming: Traces and Emergence

    Kjeldsen, Tinne Hoff & Giorgi, G., 2014, Traces and Emergence of Nonlinear Programming. Giorgi, G. & Hoff Kjeldsen, T. (eds.). Basel: Birkhäuser Verlag, p. 1-43

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  54. Bridging History of the Concept of a Function with Learning of Mathematics: Students’ meta-discursive rules, concept formation and historical awareness

    Kjeldsen, Tinne Hoff & Petersen, P. H., 2014, In: Science & Education. 23, 1, p. 29-45

    Research output: Contribution to journalJournal articlepeer-review

  55. Brug af didaktisk teori i læreres udvikling af modelleringsprojekter i matematik

    Blomhøj, M. & Kjeldsen, Tinne Hoff, 2014, In: MONA - Matematik- og Naturfagsdidaktik. 2014, 2

    Research output: Contribution to journalJournal articlepeer-review

  56. Taxicab Geometry

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2014, Mathematics Lessons Learned from Across the World: Prekindergarten - Grade 8. Lott, J. W. & Lott, C. J. (eds.). Reston: National Council of Teachers of Mathematics, p. 91-99

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  57. Teaching With and About the Nature of Mathematics through History of Mathematics: Enacting Inquiry Learning in Mathematics

    Kjeldsen, Tinne Hoff, 2014, In: Education Sciences. Special issue, p. 38-55 18 p.

    Research output: Contribution to journalJournal articlepeer-review

  58. The Role of History and Philosophy in University Mathematics Education

    Kjeldsen, Tinne Hoff & Carter, J. M. H. G., 2014, International Handbook of Research in History, Philosophy and Science Teaching. Matthews, M. R. (ed.). Dordrecht: Springer Publishing Company, Vol. II. p. 837-871

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  59. Traces and Emergence of Nonlinear Programming

    Kjeldsen, Tinne Hoff (ed.) & Giorgi, G. (ed.), 2014, Basel: Birkhäuser Verlag.

    Research output: Book/ReportAnthologypeer-review

  60. 2013
  61. Projektarbejde og modellering

    Blomhøj, M. & Kjeldsen, Tinne Hoff, Nov 2013, In: Tangenten. 24, 4, p. 29-35 7 p.

    Research output: Contribution to journalJournal article

  62. Developing Students’ Reflections on the Function and Status of Mathematical Modeling in Different Scientific Practices: History as a Provider of Cases

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2013, In: Science & Education. 22, 9, p. 2157-2171

    Research output: Contribution to journalJournal articlepeer-review

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