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

  63. Development and research in students' modelling projects for the teaching and learning of mathematics and modelling

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2013, In: Proceedings of the Fifth Conference on Research in Mathematics Education. 5, p. 1-19 1.

    Research output: Contribution to journalConference articlepeer-review

  64. From ‚mixed’ to ‚applied’ mathematics: Tracing an important dimension of mathematics and its history

    Kjeldsen, Tinne Hoff, Epple, M. & Siegmund-Schultze, R., 2013, In: Oberwolfach Reports. 10, 1, p. 657–733

    Research output: Contribution to journalConference article

  65. Hvad er matematik?

    Kjeldsen, Tinne Hoff, 2013, Håndbog om matematik i grundskolen: Læring, undervisning og vejledning. Andersen, M. W. & Weng, P. (eds.). Dansk Psykologisk Forlag, p. 12-24

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

  66. Students’ mathematical learning in modelling activities

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2013, International Perspectives on the Teaching and Learning of Mathematical Modelling. Stillman, G., Kaiser, G., Blum, W. & Brown, J. (eds.). New York: Springer Publishing Company, p. 141-151 11 p.

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

  67. The idea of mathematical models and modelling in 20th century

    Kjeldsen, Tinne Hoff, 2013, In: Oberwolfach Reports. 10, 1, p. 670-673 3 p.

    Research output: Contribution to journalConference articlepeer-review

  68. The use of Theory in Teachers' Modelling Projects – Experiences from an In-sevice Course

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2013, In: Proceedings of the Congress of the European Society for Research in Mathematics Education. 8, p. 990-999 10 p.

    Research output: Contribution to journalConference articlepeer-review

  69. 2012
  70. Asking and Answering Questions in and about the History of Mathematics: Part III: Mini course on History of Algebra. Kompendium

    Kjeldsen, Tinne Hoff (ed.) & Sørensen, H. K. (ed.), 2012, Aarhus Universitet.

    Research output: Book/ReportCompendium/lecture notes

  71. Asking and Answering Questions in and about the History of Mathematics: Part I: Historiography of Mathematics. Kompendium

    Kjeldsen, Tinne Hoff (ed.) & Sørensen, H. K. (ed.), 2012, Aarhus Universitet. 121 p.

    Research output: Book/ReportCompendium/lecture notes

  72. Asking and Answering Questions in and about the History of Mathematics: Part II: Mini course on History of Analysis. Kompendium

    Kjeldsen, Tinne Hoff (ed.) & Sørensen, H. K. (ed.), 2012, Aarhus Universitet. 238 p.

    Research output: Book/ReportCompendium/lecture notes

  73. Beyond Motivation - History as a method for the learning of meta-discursive rules in mathematics

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2012, In: Educational Studies in Mathematics. 80, 3, p. 327-349 19 p.

    Research output: Contribution to journalJournal articlepeer-review

  74. HPM 2012 – The HPM Satellite Meeting of ICME 12: We were there

    Kjeldsen, Tinne Hoff & Barbin, E., 2012, In: HPM Newsletter. 81, p. 1-3

    Research output: Contribution to journalLiterature review

  75. History and the Learning of Mathematics: Detecting student's meta-discursive rules

    Kjeldsen, Tinne Hoff & Petersen, P. H., 2012, Proceedings of ICME 12: The 12th International Congress on Mathematical Education. 10 p.

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

  76. Published

    Matematik og naturfagene i Ny Nordisk Skole

    Horst, Sebastian, Dolin, Jens, Laursen, Kjeld Bagger, Andersen, H. M., Goldbech, O. & Kjeldsen, Tinne Hoff, 2012, In: MONA: Matematik og Naturfagsdidaktik. 4, p. 68-84 17 p.

    Research output: Contribution to journalJournal article

  77. Reflections on and benefits of uses of history in mathematics education exemplified by two types of student work in upper secondary school

    Kjeldsen, Tinne Hoff, 2012, Crossroads in the History of Mathematics and Mathematics Education. Sriraman, B. (ed.). Information Age Publishing, Vol. 12. p. 333-356 24 p.

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

  78. Report from the Ph.D. Summer Course “Asking and Answering Questions in and about History of Mathematics”: Objectives and Structure

    Kjeldsen, Tinne Hoff & Krag Sørensen, H., 2012, In: BSHM Bulletin - Journal of the British Society for the History of Mathematics. 28, 1, p. 59-63

    Research output: Contribution to journalJournal article

  79. The growth of mathematical knowledge - introduction of convex bodies

    Kjeldsen, Tinne Hoff & Carter, J., 2012, In: Studies in History and Philosophy of Science Part A. 43, 2, p. 359-365

    Research output: Contribution to journalJournal articlepeer-review

  80. Uses of history for the laerning of and about mathematics: Towards a theoretical framework for integrating history of mathematics in mathematics education

    Kjeldsen, Tinne Hoff, 2012, Proceedings of the International Conference on History and Pedagogy of Mathematics. 22 p.

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

  81. 2011
  82. Does History have a Significant Role to Play for the Learning of Mathematics? Multiple perspective approach to history, and the learning of meta level rules of mathematical discourse

    Kjeldsen, Tinne Hoff, 2011, History and Epistemology in Mathematics Education: Proceedings of the 6th European Summer University.. Barbin, E., Kronfellner, M. & Tzanakis, C. (eds.). Wien: Verlag Holzhausen GmbH, p. 51-61 12 p.

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

  83. History in a Competence Based Mathematics Education: a Means for the Learning of Differential Equations

    Kjeldsen, Tinne Hoff, 2011, Recent developments on introducing a historical dimension in mathematics education. Katz, V. & Tzanakis, C. (eds.). Mathematical Association of America, p. 165-173

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

  84. Hvad er matematik?

    Kjeldsen, Tinne Hoff, 2011, Akademisk Forlag. 208 p.

    Research output: Book/ReportBook

  85. New Avenues for History in Mathematics Education: Mathematical Competencies and Anchoring

    Kjeldsen, Tinne Hoff & Jankvist, U. T., 2011, In: Science & Education. 20, 9, p. 831-862

    Research output: Contribution to journalJournal articlepeer-review

  86. Samspil mellem udvikling af praksis og matematikdidaktisk forskning – støtte til tilegnelse af integralbegrebet gennem modellering

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2011, Viden om lærere - lærerviden. Andresen, M. (ed.). København: Navimat, p. 112-146

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

  87. Students’ Reflections in Mathematical Modelling Projects

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2011, Trends in Teaching and Learning of Mathematical Modelling. Kaiser, G., Blum, W., Borromeo Ferri, R. & Stillman, G. (eds.). Springer, p. 385-396 12 p.

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

  88. The significance of different scientific practises and cultures for the function and status of mathematical modelling in other sciences

    Kjeldsen, Tinne Hoff, 2011.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  89. Uses of History in Mathematics Education: Development of Learning Strategies and Historical Awareness

    Kjeldsen, Tinne Hoff, 2011, CERME 7, Proceedings of the seventh Congress of the European Society for Research in Mathematics Education. Pytlak, M., Swoboda, E. & Rowland, T. (eds.). p. 1700-1709

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

  90. 2010
  91. Anmeldelse af Matematiske Horisonter

    Kjeldsen, Tinne Hoff, 2010, In: MONA: Matematik og Naturfagsdidaktik. 2, p. 92-98 7 p.

    Research output: Contribution to journalLiterature review

  92. History in mathematics education - why bother? Interdisciplinarity, mathematical competence and the learning of mathematics

    Kjeldsen, Tinne Hoff, 2010, Interdisciplinarity for the 21st Century: Proceedings of the 3rd International Symposium on Mathematics and its Connections to Arts and Sciences. Sriraman, B. & Freiman, V. (eds.). Information Age Publishing, p. 17-48

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

  93. History of convexity and mathematical programming: connections and relationships in two episodes of research in pure and applied mathematics of the 20th century

    Kjeldsen, Tinne Hoff, 2010, Proceedings of the International Congress of Mathematicians 2010 - Invited lectures. Bhatia, R. (ed.). New Delhi: Hindustan Book Agency, Vol. 4. p. 3233-3257

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

  94. Learning mathematics through modelling - the case of the integral concept

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2010, The First Sourcebook on Nordic Research in Mathematics Education. Sriraman, B., Haapasalo, L., Søndergaard, B. D., Palsdottir, G. & Goodchild, S. (eds.). Information Age Publishing, p. 569-582

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

  95. Mathematical modelling as goal in mathematics education - developing of modelling competency through project work

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2010, The First Sourcebook on Nordic Research in Mathematics Education. Sriraman, B., Haapasalo, L., Søndergaard, B. D., Palsdottir, G., Goodchild, S. & Bergsten, C. (eds.). Information Age Publishing, p. 555-568 19 p.

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

  96. Two episodes in late 19th century research on convex bodies: Style and towards a discipline

    Kjeldsen, Tinne Hoff, 2010, In: Oberwolfach Reports. 7, 1, p. 581-665 3 p.

    Research output: Contribution to journalConference articlepeer-review

  97. Using History as a Means for the Learning of Mathematics without Losing Sight of History: The Case of Differential Equations

    Kjeldsen, Tinne Hoff, 2010, CERME 6, Proceedings of the sixth Congress of the European Society for Research in Mathematics Education. Durand-Guerrier, V., Soury-Lavergne, S. & Arzarello, F. (eds.). Institut National de Recherche Pedagogique, p. 2742-2751 10 p.

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

  98. 2009
  99. Abstraction and application: new contexts, new interpretations in twentieth-century mathematics

    Kjeldsen, Tinne Hoff, 2009, The Oxford Handbook of the History of Mathematics. Robson, E. & Stedall, J. (eds.). New York: Oxford University Press, p. 755-778 24 p.

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

  100. Analysing the functions of mathematical modelling in science as a basis for developing modelling competency in science education

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2009, ICTMA 14: Abstracts. p. 19 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  101. Egg-forms and Measure Bodies: Different Mathematical Practices in the Early History of the Development of the Modern Theory of Convexity

    Kjeldsen, Tinne Hoff, 2009, In: Science in Context. 22, 1, p. 85-113 24 p.

    Research output: Contribution to journalJournal articlepeer-review

  102. Integrating history and philosophy in mathematics education at university level through problem-oriented project work

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2009, In: ZDM - International Journal on Mathematics Education. 41, 1-2, p. 87-103

    Research output: Contribution to journalJournal articlepeer-review

  103. Project organised science studies at university level: exemplarity and interdisciplinarity

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2009, In: ZDM - International Journal on Mathematics Education. 41, 1-2, p. 183-198

    Research output: Contribution to journalJournal articlepeer-review

  104. 2008
  105. BASE - et kursus i matematisk modellering på den naturvidenskabelige basisuddannelse ved RUC

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2008, In: Matilde. 34, p. 35-39

    Research output: Contribution to journalJournal article

  106. From measuring tool to geometrical object: Minkowski's development of the concept of convex bodies

    Kjeldsen, Tinne Hoff, 2008, In: Archive for History of Exact Sciences. 62, 1, p. 59-89 31 p.

    Research output: Contribution to journalJournal articlepeer-review

  107. Operations Research and Mathematical Programming: From War to Academia - A Joint Venture

    Kjeldsen, Tinne Hoff, 2008, History of Mathematics in Encyclopedia of Life Support Systems (EOLSS). Lundsgaard Hansen, V. & Gray, J. (eds.). Oxford ,UK, [http://www.eolss.net]: Eolss Publishers, 20 p.

    Research output: Chapter in Book/Report/Conference proceedingEncyclopedia chapterResearch

  108. The emergence of the concept of a convex body in the work of Herman Minkowski

    Kjeldsen, Tinne Hoff, 2008, In: Oberwolfach Reports. 2, p. 1340-1342 3 p.

    Research output: Contribution to journalConference articlepeer-review

  109. 2007
  110. Learning the integral concept through mathematical modellling

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2007, European Research in Mathematics: Proceedings of the Fifth Congress of the European Society for Research in Mathematics Education. Pitta-Pantazi, D. & Philippou, G. (eds.). University of Cyprus, p. 2070-2079 10 p.

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

  111. Meta aspects of science in problem based project work - experiences from Roskilde University

    Kjeldsen, Tinne Hoff, 2007, Proceeding for the Ninth International History, Philosophy & Science Teaching Conference. the International History, Philosophy, and Science Teaching Group, 7 p.

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

  112. The Significance of Modelling in Economics for the Development of Mathematics

    Kjeldsen, Tinne Hoff, 2007. 28 p.

    Research output: Contribution to conferencePaperResearchpeer-review

  113. Tucker, Albert William

    Kjeldsen, Tinne Hoff, 2007, New Dictionary of Scientific Biography. Koertge, N. (ed.). Detroit: Charles Scribner’s Sons, Vol. 7.

    Research output: Chapter in Book/Report/Conference proceedingEncyclopedia chapterResearch

  114. 2006
  115. BASE - et grundkursus i matematisk modellering. 1. del og 2. del.

    Kjeldsen, Tinne Hoff, Blomhøj, M. & Ottesen, J. T., 2006, Roskilde Universitetscenter: Roskilde Universitet.

    Research output: Book/ReportCompendium/lecture notes

  116. BASE - et grundkursus i matematisk modellering. Problemstillinger til miniprojekter

    Kjeldsen, Tinne Hoff, Morten, M. & Ottesen, J. T., 2006, Roskilde: Roskilde Universitet.

    Research output: Book/ReportCompendium/lecture notes

  117. En ny-fortolkning af det moderne konveksitetsbegrebs opståen

    Kjeldsen, Tinne Hoff, 2006, Årsberetning, RUC, 2005.. Frederiksberg: Roskilde Universitetsforlag, p. 46-47 2 p.

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

  118. Mathematics in the Physical Sciences, 1650-2000:  Introduction

    Kjeldsen, Tinne Hoff, 2006, Oberwolfachreport. Zürich: European Mathematical Society Publishing House, Vol. Volume 2, Issue 4. p. 3175-3246 71 p.

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

  119. Teaching mathematical modelling through project work: Experinces from an in-service course for upper secondary teachers

    Blomhøj, M. & Kjeldsen, Tinne Hoff, 2006, In: ZDM - Zentralblatt für Didaktik der Mathematik. 38, 2, p. 163-177 14 p.

    Research output: Contribution to journalJournal articlepeer-review

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