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ERIC Number: EJ1078914
Record Type: Journal
Publication Date: 2013-Jan
Pages: 8
Abstractor: As Provided
Reference Count: 4
ISSN: ISSN-2087-8885
Solving Problems with the Percentage Bar
van Galen, Frans; van Eerde, Dolly
Indonesian Mathematical Society Journal on Mathematics Education, v4 n1 p1-8 Jan 2013
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.
Indonesian Mathematical Society. Jl. Padang Selasa 524, Palembang, South Sumatra 30139, Indonesia. Tel: +618-127-106777; Fax: +627-113-20310; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Middle Schools; Secondary Education; Junior High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Indonesia; Netherlands