Proportional reasoning: The effect of two context variables, rate type and problem setting

P. Heller, A. Ahlgren, Thomas R. Post, M. Behr, R. Lesh

Research output: Contribution to journalArticlepeer-review

11 Scopus citations
Original languageEnglish
Pages (from-to)205-220
JournalJournal for Research in Science Teaching
Volume26
StatePublished - Mar 1989

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