Flexible Strategy Use in Young Children's Tic-Tac-Toe. - Kevin Crowley; Robert S. Siegler (Cogn. Sci., 1993)

A Cognitive Model of Fraction Arithmetic. - David W. Braithwaite; Robert S. Siegler (CogSci, 2016)

Data-Driven Design Decisions to Improve Game-Based Learning of Fractions. - Manuel Ninaus; Kristian Kiili; Robert S. Siegler; Korbinian Moeller (GALA, 2017)

Testing a Unified Model of Arithmetic. - David W. Braithwaite; Robert S. Siegler (CogSci, 2022)

Monster Math Race: Chasing Integrated Number Sense. - Lauren K. Schiller; Robert S. Siegler; Clarissa A. Thompson (CogSci, 2022)

The power of one: The importance of flexible understanding of an identity element. - Lauren K. Schiller; Ao Fan; Robert S. Siegler (J. Numer. Cogn., 2022)

Biased problem distributions in assignments parallel those in textbooks: Evidence from fraction and decimal arithmetic. - Jing Tian; Elena R. Leib; Cassondra L. Griger; Colleen O. Oppenzato; Robert S. Siegler (J. Numer. Cogn., 2022)