Effect of number structure and nature of quantities on secondary school students proportional reasoning
AbstractThis study investigates the effect of the number structure (integer vs. non-integer ratios) and the nature of the quantities (discrete vs. continuous) on the performance of secondary school students and on the strategies they use when solving proportional and non-proportional word problems. 551 secondary school students from 1st to 4th grade solved a test with proportional and non-proportional problems in which the task variables mentioned before were manipulated. Results showed that number structure affected students performance and the strategies used differently for proportional and non-proportional problems along the grades. However, the nature of the quantities had no influence.
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Bibliographic InfoPaper provided by Hogeschool-Universiteit Brussel, Faculteit Economie en Management in its series Working Papers with number 2010/33.
Length: 26 page
Date of creation: Nov 2010
Date of revision:
additive strategy; nature of quantities; number structure; over-use of proportionality; proportional reasoning;
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