Fraction Skills and Proportional Reasoning
This landmark resource gives educational decision–makers and researchers theoretical and practical insight into mathematical learning difficulties and disabilities, combining diverse perspectives from fields such as special education, developmental psychology, and cognitive neuroscience. Readers will get the foundation of knowledge they need to advance research, teaching strategies, and policies—and begin developing appropriate practices that really help students improve their math skills.
Why is math so hard for some children?: the nature and origins of mathematical learning difficulties and disabilities
Hecht, Steven A.; Vagi, K. J.; and Torgesen, J. K., "Fraction Skills and Proportional Reasoning" (2007). Faculty Books and Book Chapters. 106.