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| Duncan, David R. | 3 |
| Litwiller, Bonnie H. | 3 |
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| Guides - Classroom - Teacher | 2 |
| Journal Articles | 2 |
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| Practitioners | 3 |
| Teachers | 2 |
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Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Mathematics Teacher, 1976
Patterns emerging when two-digit numbers in various bases are operated on by squaring and summing the digits. (SD)
Descriptors: Instruction, Learning Activities, Mathematics, Mathematics Education
Peer reviewedLitwiller, Bonnie H.; Duncan, David R. – Arithmetic Teacher, 1989
Describes four activities designed to discover numerical patterns using a calculator or paper and pencil. Provides tables and figures for the activities. (YP)
Descriptors: Calculators, Computation, Elementary Education, Elementary School Mathematics
Peer reviewedDuncan, David R.; Litwiller, Bonnie H. – Arithmetic Teacher, 1990
Presents two practice-discovery activities to furnish computational review in a nonroutine setting. Provides a worksheet for the activities. (YP)
Descriptors: Arithmetic, Computation, Elementary Education, Elementary School Mathematics
