FLEXIBILITY OF EXTERNAL REPRESENTATIONS OF DOMAIN AND RANGE OF FUNCTIONS

Tian Abdul Aziz, Meyta Dwi Kurniasih

Abstract


This study attempts to analyze pre-service secondary mathematics teachers’ flexibility of external representations of domain and range of functions. To do this, a task consisted of thirty question items were designed. Participants of the study were thirty-eight Indonesian pre-service secondary mathematics teachers attending mathematics education department at one private university in Jakarta City, Indonesia. Based on analysis participants written responses, this paper revealed participants’ difficulties in providing a proper and consistent definition of the concept of domain and range functions. We also disclosed participants’ lack of flexibility in making translation among representations under the concept of domain and range function. In general, participants written responses to the task did not provide evidence of a solid understanding of domain and range. There are several implications of these findings offered for secondary mathematics teacher education’s program.


Keywords


domain, flexibility, function, pre-service mathematics teachers, range

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DOI: https://doi.org/10.22342/jme.10.1.5257.%25p

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