Cristin-resultat-ID: 1745770
Sist endret: 10. november 2019, 20:53
Resultat
Vitenskapelig foredrag
2019

South African and Norwegian prospective teachers’ discussions about the Body Mass Index in mathematics education

Bidragsytere:
  • Suela Kacerja
  • Cyril Martin Julie
  • Muhammad Faaiz Gierdien
  • Rune Herheim
  • Inger Elin Lilland og
  • Charles Raymond Smith

Presentasjon

Navn på arrangementet: The 19th International Conference on the teaching of mathematical modeling and applications (ICTMA 19)
Sted: Hong Kong
Dato fra: 21. juli 2019
Dato til: 26. juli 2019

Arrangør:

Arrangørnavn: University of Hong Kong

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2019

Beskrivelse Beskrivelse

Tittel

South African and Norwegian prospective teachers’ discussions about the Body Mass Index in mathematics education

Sammendrag

One of the aims with school mathematics, as described in different curriculum documents, is for students to develop their critical competence in mathematics. The critical competence includes critical discussions about the use and influence of mathematical models in society, which is the focus in the socio-critical modelling perspective (Blum, 2015). Pre-service teachers thus need experiences with such discussions in mathematics in order to be able to work with their students to develop critical competence. Existing mathematical models, used in decision-making in different fields in society, can be a starting point for critical discussions. It is possible to discuss the models with regard to the purpose and the appropriateness of their use, as well as their limitations with regard to their different uses. This article is concerned with the discussions that pre-service Norwegian and South African teachers of mathematics education engaged in when working on a task on the Body Mass Index (BMI). Niss (2015) drew attention towards more research focusing on prescriptive modelling, with BMI as an example, and the possibilities of fruitful discussions with it. The BMI, expressed as the ratio of mass to the square of height, 𝑚ℎ2⁄, is an example of how extra mathematical phenomena such as health and obesity are represented by a mathematical model. The students in both countries worked in groups with the BMI model in an approximately 60 minute session in their respective institutions. They were requested to focus their discussions on what BMI measures, its possible uses and limitations, and ways for improving it. The discussions were audiotaped and transcribed. A grounded theory approach was used to analyse the issues that were forthcoming from the discussions the students had. Four themes emerged: the fitness for purpose of the BMI as related to the different contexts in which it is used; the model’s non-consideration of socio-ecological issues such as geographical locations, and gender and age factors; lifestyle and how that can be seen in relation to BMI; and last, the pre-service teachers’ engagement with mathematics during the activity. The article concludes by discussing the emerging themes in relation to prior research related to critical discussions of mathematical models in society and pre-service teacher education.

Bidragsytere

Aktiv cristin-person

Suela Kacerja

  • Tilknyttet:
    Forfatter
    ved Institutt for språk, litteratur, matematikk og tolking ved Høgskulen på Vestlandet

Cyril Martin Julie

  • Tilknyttet:
    Forfatter

Muhammad Faaiz Gierdien

  • Tilknyttet:
    Forfatter
Aktiv cristin-person

Rune Herheim

  • Tilknyttet:
    Forfatter
    ved Institutt for språk, litteratur, matematikk og tolking ved Høgskulen på Vestlandet
Aktiv cristin-person

Inger Elin Lilland

  • Tilknyttet:
    Forfatter
    ved Institutt for språk, litteratur, matematikk og tolking ved Høgskulen på Vestlandet
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