By Otten Samuel   in Mathematics Magazine

ISSN:1930-0980|80|2|138-141

Mathematical Association of America‎(2007)‎

Access to resources Favorite 17.505491

By Otten Samuel   Corcoran Edward   in PRIMUS

ISSN:1051-1970|21|4|316-322

Taylor & Francis Ltd‎(2011)‎

Access to resources Favorite 14.004394

By Males Lorraine   Otten Samuel   Herbel-Eisenmann Beth   in Journal of Mathematics Teacher Education

ISSN:1386-4416|13|6|459-471

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 9.627945