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

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