Tupelo Enacted: How Teachers Shape Learning Opportunities in Middle Grades Mathematics. - Chandra Hawley Orrill; Holly Garrett Anthony; Andrew Izsák; Ernise Singleton (ICLS, 2006)

Teachers' understanding of partitioning when modeling fraction arithmetic. - Chandra Hawley Orrill; Andrew Izsák; Erik Jacobson; Zandra de Araujo (ICLS, 2010)