Full Issue | Delta-K
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From the President’s Pen
Len Bonifacio
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Determining the Angles Between Two Lines
David E. Dobbs
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Sums of Arithmetic Sequences: Several Problems and a Manipulative
A. Craig Loewen
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Developing Three Distinct Number Patterns from a Single Diagram
David R. Duncan and Bonnie H. Litwiller
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A Focus on Fostering Number Sense Makes a Lot of Sense
Werner Liedtke
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Working Toward Mathematical Literacy
Anne MacQuarrie
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An E-Conversation with a Math Olympian
Robert Wong
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A Letter to Jim About the Other, Not-So-Magic Square
A. Craig Loewen
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Activities for the Middle School Math Classroom: Games Using Manipulatives
A. Craig Loewen