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. 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

  2. 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

  3. BASE - note 1 og note 2

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

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

  4. Base note 1

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

    Research output: Book/Report › Book › Education

  5. Base note 2

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

    Research output: Book/Report › Book › Education

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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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