![](/img/cover-not-exists.png)
Comparing the Development of Fractions in the Fifth- and Sixth-Graders' Textbooks of Singapore, Taiwan, and the USA
Der-Ching Yang, Robert E. Reys, Li-Lin WuVolume:
110
Year:
2010
Language:
english
DOI:
10.1111/j.1949-8594.2010.00015.x
File:
PDF, 204 KB
english, 2010