Our staff is built to teach each student individually, to develop the skills they need to thrive in mathematics, and to foster a love of learning.

Reed Fendley

Reed graduated Phi Beta Kappa from Washington & Lee University in 1997, and he also has an M.A. in Social Studies from Teachers College, Columbia University in the City of New York. A former history teacher on the secondary and undergraduate levels, Reed is a firm believer in the value of a strong liberal arts and sciences education. When students are encouraged to “cross-train” their learning, focusing on STEM courses as well as the arts and humanities, lives are forever enriched and potential career paths are multiplied. This lifelong interest in learning, along with the practical belief that quality math instruction should be an integral part of every child’s education, encouraged Reed to join his brother, Daniel, in opening their first Mathnasium Learning Center here in Clarksville. He is excited about transforming the way kids learn math as an involved owner, and he is eager to see lives changed as kids learn to become non-routine problem solvers. When Reed is not at the center helping math make sense for kids, he enjoys traveling, training for marathons, playing golf poorly, reading literature and spending time on his family farm.

Mike Callahan

Lead Math Instructor
Mike Callahan is a retired scientist who loves to teach. While he was working full-time, he also taught part-time at the University of Louisville for over 10 years. He taught various courses in Meteorology and Computers. At home, he tutored children in everything from arithmetic to calculus. Today, in addition to working as an instructor at Mathnasium, he also teaches seminars in Robotics and Computer Coding. Mike is married, with one adult child, and lives in Jeffersonville. His hobbies include gardening, hiking, music and being a self-avowed science geek.

Our Mathnasium Mission

Teach children math so they understand it, master it, and love it. Math can change their lives, and they can change the world.

What I love about Mathnasium is the ability to teach problem-solving skills and make math make sense, while also making a student smile.
Amber W., Mathnasium Instructor

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