Supported self-explaining during fraction intervention

Lynn S. Fuchs, Amelia S. Malone, Robin F. Schumacher, Jessica Namkung, Carol L. Hamlett, Nancy C. Jordan, Robert S. Siegler, Russell Gersten, Paul Changas

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


The main purposes of this study were to test the effects of teaching at-risk 4th graders to provide explanations for their mathematics work and examine whether those effects occur by compensating for limitations in cognitive processes. We randomly assigned 212 children to 3 conditions: a control group and 2 variants of a multicomponent fraction intervention. Both intervention conditions included 36 sessions, each lasting 35 min. All but 7 min of each session were identical. In the 7-min component, students were taught to provide high quality explanations when comparing fraction magnitudes or to solve fraction word problems. Children were pretested on cognitive variables and pre/posttested on fraction knowledge. On accuracy of magnitude comparisons and quality of explanations, children who received the explaining intervention outperformed those in the word-problem condition. On word problems, children who received the word-problem intervention outperformed those in the explaining condition. Moderator analyses indicated that the explaining intervention was more effective for students with weaker working memory, while the word-problem intervention was more effective for students with stronger reasoning ability.

Original languageEnglish (US)
Pages (from-to)493-508
Number of pages16
JournalJournal of Educational Psychology
Issue number4
StatePublished - May 1 2016
Externally publishedYes


  • Fractions
  • Intervention
  • Moderator
  • Supported self-explaining
  • Working me

ASJC Scopus subject areas

  • Education
  • Developmental and Educational Psychology


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