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Twenty Key Ideas in Beginning Calculus

About the Author, Dan Umbarger

Dan Umbarger, Author of Twenty Key Ideas in Beginning Calculus

The author of Twenty Key Ideas in Beginning Calculus, Dan Umbarger, has taught various levels of mathematics from grade 5 to grade 12 for over 30 years. He currently is retired from teaching Computer Science. He is married and the proud father of three children: Jimmy, Terri, and Keelan. He is also the author of Explaining Logarithms and Explaining Bayes Theorem at www.mathlogarithms.com