Consistencies and inconsistencies in students' solutions to algebraic ‘single-value’ inequalities

Pessia Tsamir, Luciana Bazzini

Research output: Contribution to journalArticlepeer-review


This paper describes students’ solutions to a commonly taught and not commonly taught inequality. The findings showed students’ difficulties. Participants implicitly and explicitly exhibited two intuitive beliefs: inequalities must result in inequalities and solving inequalities and equations are the same process. Following the analysis of students’ written solutions, individual interviews were conducted that gave a better insight into their reasoning and provided some ideas for teaching. The concluding section of the paper offers relevant educational implications.

Original languageEnglish
Pages (from-to)793-812
Number of pages20
JournalInternational Journal of Mathematical Education in Science and Technology
Issue number6
StatePublished - 2004


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