The SciencesNovember 28, 2017
Fractions: Where It All Goes Wrong
Why do Americans have such trouble with fractions—and what can be done?
Stories by Robert S. Siegler
Robert S. Siegler is Teresa Heinz Professor of Cognitive Psychology at Carnegie Mellon University. As of September, 2018, he will be Schiff Foundations Professor of Psychology at Columbia University, Teachers College.