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Students determining the median for different data sets: A spectrum of responses
Stockholm University, Faculty of Science, Department of Mathematics and Science Education.ORCID iD: 0000-0001-5609-0752
2016 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The present study reports on 359 students’ responses to two test items on the median. Among the responses were other measures of location such as the arithmetic mean and the midrange. Moreover, among those who used a median strategy there was a spectrum of sources of confusion in the data set. In one test item the data were given in a table of signed integers and some students ignored the negative signs in the data. In the other test item the data were given in a bivariate diagram. Instead of correctly using the horizontal coordinate of the data, several students used the axis grading or the vertical coordinates as data. A conclusion is that the representation format of the data had a large effect on the achievement on the two test items.

Place, publisher, year, edition, pages
Göteborg: Svensk förening för MatematikDidaktisk Forskning - SMDF, 2016.
National Category
Didactics
Research subject
Mathematics Education
Identifiers
URN: urn:nbn:se:su:diva-139220OAI: oai:DiVA.org:su-139220DiVA: diva2:1071639
Conference
Tenth Swedish Mathematics Education Research Seminar, Karlstad, Sweden, January 26-27, 2016
Available from: 2017-02-06 Created: 2017-02-06 Last updated: 2017-12-21Bibliographically approved

Open Access in DiVA

abstract(15 kB)20 downloads
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632be5d0587925099e89e233bcdffc12c17de5eb2e89089dba22f0cf830978913fde98685e940c088ea21ca3c4b36c830326e9a926208f4e17788921b50f300b
Type fulltextMimetype application/pdf

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Petersson, Jöran
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf