About the Author
Daniel C. Alexander has taught mathematics at Parkland College in Champagne, Illinois, for the past fifteen years. Prior to his arrival at Parkland, Professor Alexander taught at the high-school level. He received his undergraduate and graduate degrees at Southern Illinois, Carbondale.
Geralyn Koeberlein teaches mathematics at Mahomet-Seymour High School in Champagne, Illinois. She has been awarded several outstanding teacher awards throughout her career.
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