Tinne Hoff Kjeldsen

Tinne Hoff Kjeldsen

Professor, Deputy Head of Department, Professor

Member of:

  • Didactics of Mathematics

ORCID: 0000-0002-2426-1622

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  1. 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 proceeding › Book chapter › Research › peer-review

  2. BASE - note 1 og note 2

    Kjeldsen, Tinne Hoff, 2000, Roskilde: Roskilde Universitet.

    Research output: Book/Report › Compendium/lecture notes › Education

  3. 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 proceeding › Book chapter › Research

  4. The Kuhn-Tucker theorem in nonlinear programming: a multiple discovery?

    Kjeldsen, Tinne Hoff, 1999, Roskilde Universitet.

    Research output: Book/Report › Book › Research

  5. Published

    Rook Review: Taming the Unknown: A History of Algebra from Antiquity to the Early Twentieth Century / Victor J. Katz and Karen Hunger Parshall. Princeton/Oxford (Princeton University Press). 2014. 485pp., figs., bibl., index

    Kjeldsen, Tinne Hoff, 2017, In: Historia Mathematica. 44, 1, 70 p.

    Research output: Contribution to journal › Literature review › Research

  6. 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 journal › Conference article › Research › peer-review

  7. Kompendium - Seminar i matematikhistorie: geometri i matematikhistorisk belysning

    Kjeldsen, Tinne Hoff, 2000, Roskilde: Roskilde Universitet.

    Research output: Book/Report › Compendium/lecture notes › Education

  8. 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 proceeding › Book chapter › Research › peer-review

  9. 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 proceeding › Book chapter › Research › peer-review

  10. 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 proceeding › Book chapter › Research › peer-review

  11. 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/Report › Compendium/lecture notes › Education

  12. 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 proceeding › Conference abstract in proceedings › Research

  13. 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 journal › Journal article › Research › peer-review

  14. Talbegrebets oprindelse

    Kjeldsen, Tinne Hoff, 1988, Teori og Redskab 1: Tal og funktioner. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, Vol. 1. p. 9-21

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Education

  15. 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 proceeding › Book chapter › Research

  16. 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 proceeding › Book chapter › Research

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

    Kjeldsen, Tinne Hoff, 2007. 28 p.

    Research output: Contribution to conference › Paper › Research › peer-review

  18. John von Neumann's conception of the minimax theorem: a journey through different mathematical contexts

    Kjeldsen, Tinne Hoff, 2001, In: Archive for History of Exact Sciences. 56, p. 39-68

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. The development of nonlinear programming in post war USA : origin, motivation, and expansion

    Kjeldsen, Tinne Hoff, 2006, The Way Through Science and Philosophy: Essays in Honour of Stig Andur Pedersen. Andersen, H. B., Christianssen, F. V., Jørgensen, K. F. & Hendricks, V. F. (eds.). London: College Publications, p. 31-50

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  20. 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 proceeding › Book chapter › Research › peer-review

  21. 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 proceeding › Encyclopedia chapter › Research

  22. 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 journal › Conference article › Research › peer-review

  23. Ligningernes Historie

    Kjeldsen, Tinne Hoff, 1989, Teori og Redskab 2: Geometri og specielle funktioner. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, Vol. 2. p. 205-217

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Education

  24. 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 journal › Conference article › Research

  25. 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 proceeding › Book chapter › Research › peer-review

  26. 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 proceeding › Article in proceedings › Research › peer-review

  27. 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 proceeding › Book chapter › Research › peer-review

  28. 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 journal › Journal article › Research › peer-review

  29. 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 journal › Journal article › Research › peer-review

  30. 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 journal › Journal article › Research

  31. 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 journal › Conference article › Research

  32. 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 journal › Conference article › Research

  33. 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 journal › Journal article › Research › peer-review

  34. 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/Report › Anthology › Research › peer-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 proceeding › Article in proceedings › Research

  36. Projektarbejde og modellering

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

    Research output: Contribution to journal › Journal article › Communication

  37. 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 journal › Journal article › Research › peer-review

  38. Matematisk modellering ved den naturvidenskabelige basisuddannelse: udvikling af et kursus

    Blomhøj, M., Højgaard Jensen, T., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2001, Roskilde Universitet. 82 p.

    Research output: Book/Report › Report › Research

  39. 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 proceeding › Book chapter › Research › peer-review

  40. Base note 2

    Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2002, Roskilde: Roskilde Universitet. 161 p.

    Research output: Book/Report › Book › Education

  41. 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 journal › Journal article › Research › peer-review

  42. BASE: et grundkursus i matematisk modellering. problemstillinger til miniprojekter

    Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2003, Roskilde: Roskilde Universitet. 181 p.

    Research output: Book/Report › Book › Education

  43. Base note 1

    Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2002, Roskilde: Roskilde Universitet. 163 p.

    Research output: Book/Report › Book › Education

  44. BASE: et grundkursus i matematisk modellering. 2. del

    Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2003, Roskilde: Roskilde Universitet. 150 p.

    Research output: Book/Report › Book › Education

  45. BASE: et grundkursus i matematisk modellering. 1. del

    Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2003, Roskilde: Roskilde Universitet. 181 p.

    Research output: Book/Report › Book › Education

  46. BASE - note 1 og note 2: undervisningsmateriale til Natbas

    Blomhoej, M., Ottesen, J. T. & Kjeldsen, Tinne Hoff, 2001, Roskilde: Roskilde Universitet.

    Research output: Book/Report › Compendium/lecture notes › Education

  47. 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 proceeding › Article in proceedings › Research

  48. 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/Report › Anthology › Research › peer-review

  49. Sidefagssupplering: Matematisk Modellering

    Andreasen, V., Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2004, Roskilde Universitet. 337 p.

    Research output: Book/Report › Book › Research › peer-review

  50. Sidefagssupplering, et grundkursus i matematisk modellering: del 1 og del 2

    Andreasen, V., Blomhøj, M., Kjeldsen, Tinne Hoff & Ottesen, J. T., 2003, Roskilde Universitet. 337 p.

    Research output: Book/Report › Book › Research › peer-review

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