PUPILS’ MENTAL MODELS OF A PULLEY IN BALANCE

TitlePUPILS’ MENTAL MODELS OF A PULLEY IN BALANCE
Publication TypeJournal Article
Year of Publication2005
AuthorsHakkarainen, O, Ahtee, M
JournalJournal of Baltic Science Education
Volume4
Issue2
Start Page26-34
Date PublishedOctober/2005
Type of ArticleOriginal article
ISSN1648-3898
Other NumbersICID: 452548
Keywordsconceptual change, mental model, physics education, secondary school, weight
Abstract

Pupils from 5th, 7th and 9th grades compared the weight of a small standard mass and a big bag hanging in a pulley at different positions in equilibrium. In all the three age groups the majority (about 70%) of the pupils stated that the lower hanging bag is heavier. Less than 15% of the pupils in the 7th and 9th grades understood that the bodies must have the same weight. Pupils’ reasoning was classified into four categories that were interpreted as mental models according to Vosniadou’s framework theory. Only about 5% of the seventh graders and 10% of the ninth graders seem to grasp the scientific model Motion that leads to the concept of gravity.

URLhttp://journals.indexcopernicus.com/abstracted.php?level=5&icid=452548
Refereed DesignationRefereed