Norma C. Presmeg

Norma Christine Presmeg was a mathematics education researcher whose work has concerned mathematical visualization, semiotics, and ethnomathematics, and their role in secondary-school mathematics teaching and learning. Presmeg was originally from South Africa, was educated in South Africa and England, and worked in the US, where she was professor emeritus of mathematics at Illinois State University. She died on February 25, 2026, aged 83.

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