Ohio Journal of School Mathematics: Number 18 (Spring 1990)
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Front Matter
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Misusing Medical Percents
Duncan, David R.; Litwiller, Bonnie H. pp. 1-3
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Curve Sketching - a Discovery Approach Using Graphing Software and/or Graphics Calculators
Sanor, Catherine pp. 4-8
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Baseball, Paradoxes, and Spreadsheets
Sovchik, Bob pp. 9-11
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Using Models to Develop Fraction Concepts
Proudfit, Linda pp. 12-17
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Word Problems and the Friendly Letter
Gray, Margaret Jo pp. 18-21
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Circles in New Worlds
Millman, Richard S. pp. 22-28
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Introducing Algebraic Factoring Using a Graphic Approach
Flick, T. Michael pp. 29-32
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Back Matter
p. 32
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