New directions for elementary school mathematics
| Údar corparáideach: | |
|---|---|
| Rannpháirtithe: | |
| Formáid: | LEABHAR |
| Teanga: | Béarla |
| Foilsithe / Cruthaithe: |
Reston, VA
NCTM
1989.
|
| Sraith: | Yearbook / National Council of Teachers of Mathematics
1989 |
| Ábhair: |