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Hughes, Barnabas B. – Two-Year College Mathematics Journal, 1979
The article includes a short history of polygonal numbers, a method for finding the root of a polygonal number, and suggestions for using polygonal numbers in the classroom. (MK)
Descriptors: Algebra, College Mathematics, Higher Education, Mathematical Enrichment

Hirsch, Christian R. – Mathematics Teacher, 1980
Worksheets for duplication are provided for this activity designed for students in grades 6-10. The objective of the activity is to have students discover generalizations about the patterns formed. (MK)
Descriptors: Activities, Algebra, Generalization, Geometric Concepts