Transition Boards: Moving from Materials to Symbols in Subtraction
| Autor: | Thompson, Charles S., Van de Walle, John |
|---|---|
| Zdroj: | The Arithmetic Teacher, 1981 Jan 01. 28(5), 4-9. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | Thompson, Charles S., Van de Walle, John |
|---|---|
| Zdroj: | The Arithmetic Teacher, 1981 Jan 01. 28(5), 4-9. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|