![](/img/cover-not-exists.png)
Mathematical tasks designed to foster a reconceptualized view of early arithmetic
Erna Yackel, Diana Underwood, Norma EliasVolume:
10
Language:
english
Pages:
17
DOI:
10.1007/s10857-007-9044-x
Date:
December, 2007
File:
PDF, 302 KB
english, 2007