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| Arithmetic Teacher | 1 |
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| Krusen, Kim | 1 |
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| Guides - Classroom - Teacher | 1 |
| Journal Articles | 1 |
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| Teachers | 1 |
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Peer reviewedKrusen, Kim – Arithmetic Teacher, 1991
Described is an activity in which students develop their own number system. This activity allow students to examine the structure and history of number systems and to discover the power and respectable efficiency of the number system used today. (KR)
Descriptors: Elementary Education, Elementary School Mathematics, Learning Activities, Mathematical Concepts


