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Duncan, David R.	2
Litwiller, Bonnie H.	2

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Polygons on a Number Lattice: Sums, Products, and Differences.

Peer reviewed

Litwiller, 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

Number-Lattice Polygons and Patterns: Sums and Products.

Peer reviewed

Duncan, 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