Let's Do It: Positive Patterning
| Autor: | Glenn Nelson, Larry P. Leutzinger |
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| Rok vydání: | 1979 |
| Předmět: | |
| Zdroj: | The Arithmetic Teacher. 27:8-13 |
| ISSN: | 0004-136X |
| DOI: | 10.5951/at.27.1.0008 |
| Popis: | Skill in associating numbers with sets of dots is useful as an intermediate step between counting and the development of concepts that are important in learning and understanding addition and subtraction. |
| Databáze: | OpenAIRE |
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