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. 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 proceeding › Book chapter › Research › peer-review

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

  3. Sidefagssupplering: matematisk modellering

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

    Research output: Book/Report › Book › Education

  4. 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

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

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

    Research output: Book/Report › Book › Education

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. Base note 2

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

    Research output: Book/Report › Book › Education

  15. 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

  16. 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

  17. Base note 1

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

    Research output: Book/Report › Book › Education

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 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

  29. 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

  30. 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

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

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

    Kjeldsen, Tinne Hoff, 1999, Roskilde Universitet.

    Research output: Book/Report › Book › Research

  33. 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

  34. BASE - note 1 og note 2

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

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

  35. 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

  36. Introduction

    Kjeldsen, Tinne Hoff & Pedersen, S. A., 2004, New Trends in the History and Philosophy of Mathematics. Kjeldsen, T. H., Pedersen, S. A. & Sonne-Hansen, L. M. (eds.). Odense: Syddansk Universitetsforlag, p. 11-28

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

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

  38. The emergence of nonlinear programming: interactions between practical mathematics and mathematics proper

    Kjeldsen, Tinne Hoff, 2000, In: Mathematical Intelligencer. 22, 3, p. 50-54

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

  39. Momentproblemets udvikling fra Stieltjes til Marcel Riesz

    Kjeldsen, Tinne Hoff, 1988, København: Københavns Universitet. 127 p.

    Research output: Book/Report › Report › Research

  40. BASE - et grundkursus i matematisk modellering: Problemstillinger til miniprojekter

    Kjeldsen, Tinne Hoff, Ottesen, J. T. & Blomhøj, M., 2005, Roskilde: Roskilde Universitet.

    Research output: Book/Report › Book › Education

  41. Landmåling og korttegning

    Kjeldsen, Tinne Hoff, 2005, Gyldendals Gymnasiematematik: B1 - Grundbog. Clausen, F., Schomacker, G. & Tolnø, J. (eds.). København: Gyldendal, p. 40-46 7 p.

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

  42. Hvad er matematik?

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

    Research output: Book/Report › Book › Communication

  43. 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 journal › Conference article › Research

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

  45. The historical background of nonlinear programming

    Kjeldsen, Tinne Hoff, 1997, Selected topics in mathematics: proceedings of the first Nordic summer school for female Ph.d. students of mathematics. Klisinska, A. & Persson, L-E. (eds.). Luleå, Sweden: Luleå tekniska universitet, p. 63-67

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

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

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

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

  49. 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 proceeding › Book chapter › Research

  50. BASE - et grundkursus i matematisk modellering: Problemstillinger til miniprojekter

    Kjeldsen, Tinne Hoff, Blomhøj, M. & Ottesen, J. T., 2004, Roskilde: Roskilde Universitet. 92 p.

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

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