Solving Problems with The Percentage Bar

At the end of primary school all children more of less know what a percentage is, but yet they often struggle with percentage problems. This article describes a study in which students of 13 and 14 years old were given a written test with percentage problems and a week later were interviewed about t...

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Bibliographic Details
Published inIndoMS-journal on mathematics education Vol. 4; no. 1; pp. 1 - 8
Main Authors Galen, Frans Van, Eerde, Dolly Van
Format Journal Article
LanguageEnglish
Published Indonesian Mathematical Society 01.01.2013
Sriwijaya University
Subjects
Cognitive Style
Experimental Teaching
Foreign Countries
Indonesia
Instructional Effectiveness
Interviews
Mathematical Concepts
Mathematical Formulas
Mathematical Models
Mathematics Tests
Middle School Students
Netherlands
Problem Solving
Student Attitudes
Teaching Methods
Teaching Models
Netherlands
Indonesia
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Summary:At the end of primary school all children more of less know what a percentage is, but yet they often struggle with percentage problems. This article describes a study in which students of 13 and 14 years old were given a written test with percentage problems and a week later were interviewed about the way they solved some of these problems. In a teaching experiment the students were then taught the use of the percentage bar. Although the teaching experiment was very short--just one lesson--the results confirm that the percentage bar is a powerful model that deserves a central place in the teaching of percentages.
ISSN:2087-8885
2407-0610
DOI:10.22342/jme.4.1.558.1-8