Learning to Add and Subtract
| Autor: | Romberg, Thomas A., Collis, Kevin F., Grouws, Douglas A. |
|---|---|
| Zdroj: | Journal for Research in Mathematics Education. Monograph, 1987 Jan 01. 2, i-178. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | Romberg, Thomas A., Collis, Kevin F., Grouws, Douglas A. |
|---|---|
| Zdroj: | Journal for Research in Mathematics Education. Monograph, 1987 Jan 01. 2, i-178. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|