Order and distance of fractions and decimals on the number line

he case of Abigail

Authors

  • Alfinio Flores Peñafiel Universidad de Delaware
  • Thomas G Rothery Perry High School, Chandler AZ

DOI:

https://doi.org/10.35763/aiem.v1i5.49

Keywords:

fractions, decimals, number line, representations, order, distance, interactive technology

Abstract

This is a case study about representations of rational numbers on the number line made by hand by a high school student and using an interactive computer program. At the beginning the student’s representations showed a clear understanding of how to represent order among different numbers on the number line, but not how to represent distances between them correctly. The form of representation used (decimals or fractions) also was important for her ability to show her understanding about distances between different rational numbers. The study reveals the thinking of the student, her difficulties and progress, through her interactions with the interviewer and the computer program

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Author Biography

Alfinio Flores Peñafiel, Universidad de Delaware

Profesor de Educación Matemática, Departamento de Ciencias Matemáticas

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Published

2014-05-06

How to Cite

Flores Peñafiel, A., & Rothery, T. G. (2014). Order and distance of fractions and decimals on the number line: he case of Abigail. Advances of Research in Mathematics Education, (5), 73–90. https://doi.org/10.35763/aiem.v1i5.49

Issue

No. 5 (2014)

Section

Artículos

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