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Solving Arithmetic Word Problems

An Analysis of Classification as a Function of Difficulty in Children With and Without Arithmetic LD

Developmental and Educational Psychology Department of the University of La Laguna, aigarcia@ ull.es

Juan E. Jiménez

Developmental and Educational Psychology Department of the University of La Laguna

Stephany Hess

University of La Laguna

This study was designed to determine a word problem difficulty classification in children with arithmetic learning disabilities (ALD; n = 104) in comparison with typically achieving students (n = 44). We tested variables such as (a) semantic structure (Change, Combine, Compare, and Equalize), (b) operation (subtraction and addition), and (c) position of the unknown quantity in the problem. Facet theory with multidimensional scaling techniques (MINISSA) was used to analyze the underlying dimensions in the responses of each group of participants. Our results indicate that although the word problem difficulty classifications for the 2 groups of children were different, the position of the unknown quantity had a greater influence on the level of difficulty of story problems than other variables. The noncanonical problems—specifically, those with the unknown term in the first place—although difficult for both groups of children, were the most difficult problems for children with ALD.

Journal of Learning Disabilities, Vol. 39, No. 3, 270-281 (2006)
DOI: 10.1177/00222194060390030601


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