Trygve Breiteig

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Self-evaluation of the Nordic Research Schools in the Humanities and Social Sciences 2004-2008 Nordic Graduate School in Mathematics Education

Christer Bergsten, Barbro Grevholm, Trygve Breiteig, 2008 .

2. Introducing New Content into a School Mathematics Curriculum: The Case of Cryptology

C. Julie, Trygve Breiteig, Kalvin Whittles, 2022 .

When is the Product of Two Oblong Numbers Another Oblong?

Trygve Breiteig, 2000 .

Beliefs and attitudes in mathematics teaching and learning

Barbro Grevholm, Trygve Breiteig, K. Kislenko, 2005 .

Quotients of triangular numbers

Trygve Breiteig, 2015, The Mathematical Gazette.