Expanding Task Instructions May Increase Fractions Problem Difficulty for Students With Mathematics Learning Disability

Katherine H. Herold, Allison M. Bock, Melissa M. Murphy, Michèle M.M. Mazzocco

Research output: Contribution to journalArticlepeer-review

Abstract

When a student struggles with a mathematics task, adults may rephrase or expand initial task instructions to clarify instructions or scaffold problem solving. Yet expanded instructions may not benefit all children, especially children with a mathematics learning disability (MLD). Here, we explore whether expanded instructions differentially affect fractions comparison performance for children with or without MLD. Fifth graders (N = 190) completed two consecutive sets of 24 fraction comparison items, each accompanied by initial or expanded instructions, respectively; and also completed vocabulary, spatial reasoning, verbal working memory, executive function, and number knowledge tasks. Results showed that fraction comparison performance was generally worse following expanded rather than initial instructions, particularly for difficult items or for children with MLD. Fixed ordered regressions showed that the strength of cognitive skills as predictors of performance varied depending on instructions format and MLD status, that the five cognitive predictors collectively accounted for more performance variation with initial compared to expanded instructions, and that vocabulary’s relative predictive strength as a single predictor increased when instructions were expanded, but only for children with mathematics difficulties. These findings support the notion that problem features differentially affect children with or without MLD and that not all children benefit from hearing expanded instructions for difficult mathematics tasks.

Original languageEnglish (US)
Pages (from-to)201-213
Number of pages13
JournalLearning Disability Quarterly
Volume43
Issue number4
DOIs
StatePublished - Nov 1 2020

Keywords

  • expanded task instructions
  • fractions
  • mathematics learning disability
  • problem difficulty

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