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. 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

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

  3. A History of the Minimax Theorem: a journey through different mathematical contexts

    Kjeldsen, Tinne Hoff, 1999, 9. Novembertagung zur Geschichte der Mathematik. Beckers, D., Peters, K. & Vollmers, C. (eds.). p. 32-38

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  4. 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

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

  6. A contextualized historical analysis of the Kuhn-Tucker theorem in nonlinear programming: the impact of World War II

    Kjeldsen, Tinne Hoff, 2000, In: Historia Mathematica. 27, p. 331-361

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

  7. A history of the minimax theorem: von Neumann's conception of the minimax theorem. a journey through different mathematical contexts

    Kjeldsen, Tinne Hoff, 2000, Roskilde Universitet. 44 p.

    Research output: Book/Report › Report › Research

  8. 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

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

  10. 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

  11. Anmeldelse af Matematiske Horisonter

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

    Research output: Contribution to journal › Literature review › Communication

  12. 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/Report › Compendium/lecture notes › Education

  13. 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/Report › Compendium/lecture notes › Education

  14. 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

  15. 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

  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: 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

  18. 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

  19. 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

  20. BASE - et grundkursus i matematisk modellering I

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

    Research output: Book/Report › Book › Education

  21. BASE - et grundkursus i matematisk modellering II

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

    Research output: Book/Report › Book › Education

  22. BASE - et grundkursus i matematisk modellering. 1. Del

    Kjeldsen, Tinne Hoff, Blomhøj, M. & Ottesen, J. T., 2004, Roskilde: Roskilde Universitet. 230 p.

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

  23. 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/Report › Compendium/lecture notes › Education

  24. BASE - et grundkursus i matematisk modellering. 2. Del

    Kjeldsen, Tinne Hoff, Blomhøj, M. & Ottesen, J. T., 2004, Roskilde: Roskilde Universitet. 154 p.

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

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

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

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

  26. 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 journal › Journal article › Communication

  27. 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

  28. BASE - note 1 og note 2

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

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

  29. Base note 1

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

    Research output: Book/Report › Book › Education

  30. Base note 2

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

    Research output: Book/Report › Book › Education

  31. 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

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

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

  34. 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

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

  36. 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

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

  38. 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

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

  40. Different motivations and goals in the historical development of the theory of systems of linear inequalities

    Kjeldsen, Tinne Hoff, 2002, In: Archive for History of Exact Sciences. 56, p. 469-438

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

  41. Differentialregningens Historie

    Kjeldsen, Tinne Hoff, 1989, Teori og Redskab 3: Differentialregning. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, Vol. 3. p. 131-162 31 p.

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

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

  43. 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

  44. En kontekstualiseret matematikhistorisk analyse af ikke-lineær programmering: udviklingshistorie og multipel opdagelse

    Kjeldsen, Tinne Hoff, 1999, Roskilde Universitet.

    Research output: Book/Report › Ph.D. thesis › Research

  45. 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 proceeding › Book chapter › Research

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

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

  48. Fenchels konjugerede konvekse funktioner og deres anvendelse i konveks programmering: Fenchels dualitetssætning

    Kjeldsen, Tinne Hoff, 2003, In: Matilde. 15, p. 14-17

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

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

  50. 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

  51. 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

  52. 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 journal › Conference article › Research

  53. Funktionsbegrebets udvikling

    Kjeldsen, Tinne Hoff, 1988, Teori og Redskab 2: Tal og funktioner. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, p. 179-184

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

  54. Geometriens Historie

    Kjeldsen, Tinne Hoff, 1989, Teori og Redskab 2: Geometri og specielle funktioner. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, Vol. 2. p. 9-25

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

  55. 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 journal › Literature review › Communication

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

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

  58. 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 proceeding › Book chapter › Research

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

  60. 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

  61. 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

  62. 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

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

  64. 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 proceeding › Book chapter › Communication

  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 proceeding › Book chapter › Communication

  66. Hvad er matematik?

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

    Research output: Book/Report › Book › Communication

  67. Ideer til problemorienterede projekter af historisk og filosofisk karakter: Problemorienteret projektarbejde i, om og med matematik i gymnasiet - et kursus for gymnasielærere

    Kjeldsen, Tinne Hoff & Blomhøj, M., 2004, Roskilde: Roskilde Universitet. 79 p.

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

  68. 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

  69. Integralregningens Historie

    Kjeldsen, Tinne Hoff, 1991, Teori og Redskab 6: Integralregning og differentialligninger. Jensen, S. & Sørensen, K. (eds.). København: Christian Ejlers, Vol. 6. p. 113-138

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

  70. 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

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

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

  73. 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

  74. 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

  75. 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

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

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

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

  77. Kvinder og matematik - Netværk og myter

    Kjeldsen, Tinne Hoff, 2001, In: Matilde. p. 2 1 p.

    Research output: Contribution to journal › Journal article › Research

  78. 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

  79. 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

  80. 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

  81. 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

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

  83. Matematik og matematikhistorie: et gensidigt forhold

    Kjeldsen, Tinne Hoff, 2003, In: Matilde. 15, p. 2

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

  84. 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

  85. Matematisk Billedbog

    Kjeldsen, Tinne Hoff & Tolnø, J., 1988, København: Københavns Universitet. 59 p.

    Research output: Book/Report › Book › Communication

  86. 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

  87. 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

  88. 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

  89. 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

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

  91. 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 proceeding › Book chapter › Research

  92. 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

  93. Matilde: Kvinder og matematik

    Kjeldsen, Tinne Hoff, 2001

    Research output: Book/Report › Book › Research

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

  95. 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

  96. 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

  97. 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

  98. Momentproblemets udvikling fra Stieltjes til Marcel Riesz

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

    Research output: Book/Report › Report › Research

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

  100. 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 proceeding › Article in proceedings › Communication

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