Proportional reasoning

R. Lesh, Thomas R. Post, M. Behr

Research output: Chapter in Book/Report/Conference proceedingChapter

Original languageEnglish
Title of host publicationNumber concepts and operations in the middle grades
EditorsM. Behr, J. Hiebert
PublisherNational Council of Teachers of Mathematics, Lawrence Erlbaum Associates
Pages93-118
Volume2
StatePublished - 1988

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