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International Electronic Journal of Mathematics Education

International Electronic Journal of Mathematics Education
A Written Instrument for Assessing Students’ Units Coordination Structures
Anderson Norton, Steven Boyce, Nathan Phillips, Tessa Anwyll, Catherine Ulrich, Jesse L. M. Wilkins
  • Article Type: Research Article
  • International Electronic Journal of Mathematics Education, 2015 - Volume 10 Issue 2, pp. 111-136
  • Published Online: 02 Aug 2015
  • Article Views: 2132 | Article Download: 1862
  • Open Access Full Text (PDF)
APA
In-text citation: (Norton et al., 2015)
Reference: Norton, A., Boyce, S., Phillips, N., Anwyll, T., Ulrich, C., & Wilkins, J. L. M. (2015). A Written Instrument for Assessing Students’ Units Coordination Structures. International Electronic Journal of Mathematics Education, 10(2), 111-136.
AMA
In-text citation: (1), (2), (3), etc.
Reference: Norton A, Boyce S, Phillips N, Anwyll T, Ulrich C, Wilkins JLM. A Written Instrument for Assessing Students’ Units Coordination Structures. INT ELECT J MATH ED. 2015;10(2), 111-136.
Chicago
In-text citation: (Norton et al., 2015)
Reference: Norton, Anderson, Steven Boyce, Nathan Phillips, Tessa Anwyll, Catherine Ulrich, and Jesse L. M. Wilkins. "A Written Instrument for Assessing Students’ Units Coordination Structures". International Electronic Journal of Mathematics Education 2015 10 no. 2 (2015): 111-136.
Harvard
In-text citation: (Norton et al., 2015)
Reference: Norton, A., Boyce, S., Phillips, N., Anwyll, T., Ulrich, C., and Wilkins, J. L. M. (2015). A Written Instrument for Assessing Students’ Units Coordination Structures. International Electronic Journal of Mathematics Education, 10(2), pp. 111-136.
MLA
In-text citation: (Norton et al., 2015)
Reference: Norton, Anderson et al. "A Written Instrument for Assessing Students’ Units Coordination Structures". International Electronic Journal of Mathematics Education, vol. 10, no. 2, 2015, pp. 111-136.
Vancouver
In-text citation: (1), (2), (3), etc.
Reference: Norton A, Boyce S, Phillips N, Anwyll T, Ulrich C, Wilkins JLM. A Written Instrument for Assessing Students’ Units Coordination Structures. INT ELECT J MATH ED. 2015;10(2):111-36.

Abstract

Units coordination refers to students’ abilities to create units and maintain their relationships with other units that they contain or constitute. In recent research, units coordination has arisen as a key construct that mediates opportunities for student learning across several domains of mathematics, including fractions knowledge and algebraic reasoning. To date, assessments of students’ stages of units coordinating ability have relied upon clinical interviews or teaching experiments whose time-intensive nature precludes opportunities for conducting large-scale studies. We introduce a written instrument that teachers and researchers can use with large populations of students. We report on the reliability and validity of assessments based on the instrument.
 

Keywords

assessment fractions multiplicative reasoning units coordination written instrument

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