Items where authors include "Siegler, Robert S"

Article

Siegler, Robert S and Lortie-Forgues, Hugues orcid.org/0000-0002-4060-8980 (2017) Hard lessons : Why rational number arithmetic is so difficult for so many people. Current Directions in Psychological Science. pp. 346-351. ISSN 1467-8721

Lortie-Forgues, Hugues orcid.org/0000-0002-4060-8980 and Siegler, Robert S (2017) Conceptual knowledge of decimal arithmetic. Journal of Educational Psychology. pp. 374-386. ISSN 0022-0663