Emil Dukovac
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Ideas
from the Arithmetic Teacher
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Algebra through Applications with Probability and Statistics
Developed by Zalman Usiskin
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A-B-C-U in SEATTLE
NCTM
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The Fixed Element Match Problem: An Illustration with Cards
Bonnie H. Litwiller and David R. Duncan
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Ideas
Prepared by George W. Bright
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Instructive Prime Number Reduction Algorithms
William J. Bruce
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A Christmas Ornament
Geer, Geer, Geer and Gast
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SEATTLE SPIN
NCTM
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Instructional Problems and Teaching Strategies
Joanne Newman and Ved Madan