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Our Team

Harry Potvin, Director
Harry Potvin believes every child can excel at math - regardless of their age or current ability with the subject. That's because he knows when things get tough, children don't hate math. They hate being confused and intimidated by math. And he knows how to help turn confusion and intimidation into success! Harry earned a Bachelor's Degree from GMI (now known as Kettering University) and a Master's Degree from Wayne State University. He has more than 35 successful years of business experience - and more importantly - a lifelong love and affinity for mathematics.
Christine Potvin, Assistant Director
Christine Potvin earned an Associate’s Degree and spent nearly a decade in Manufacturing Engineering before becoming a mother. She understands how stressful math can be for a child - and that it doesn't have to be. After many years spent raising children full-time, Christine now has nearly 15 years serving with the Lake Orion Public School System under her belt as an elementary, middle and high school employee. In her role as a mother and school employee, she has seen first-hand the importance a solid understanding of mathematics plays in a child's academic career. She has an amazing ability to make learning fun, and an excellent rapport with children. Together, Harry and Chris have raised three children, and are actively working to give their two pre-K grandchildren a solid understanding of mathematics from a young age. They have both been active community volunteers in countless youth programs for the past 25 years. Harry and Chris have a strong desire to continue making a positive impact on young people by sharing the Mathnasium Method with local students - a method that gives children an effective, engaging and encouraging learning experience
Mark Roper, Instructor
Mark is a 2010 Graduate of Michigan State University with a degree in Physiology. At MSU he was a Math Teaching Assistant and Tutor for algebra, geometry, pre-calc and calculus. He has worked at Mathnasium since October 2010.
Russell Swanson, Instructor
Russ moved to Michigan from Long Beach California to pursue his studies at Oakland University. He was awarded a Bachelor of Arts in Mathematics in Dec 2011 and plans on starting a Masters in Education in the Spring of 2012. Russ has worked at Mathnasiun since September 2011.
Christine Menig, Instructor
Christine is a Grand Valley graduate and a mother of two school age children. She has been with Mathnasium of Lake Orion since October 2009. She has had a lifelong interest in mathematics and has volunteered as a math tutor at Paint Creek Elementary for several years.
Stephanie Nummer, Instructor
Stephanie is currently a student at the University of Michigan - Flint majoring in Environmental Science. She has been with Mathnasium of Lake Orion since January 2011. She excelled at Mathematics in High School and is continuing to excel at University level mathematics.
Steven Swetich, Instructor
Steven is currently a student at Oakland University majoring in Statistics. He has been with Mathnasium of Lake Orion since January 2012. He has also been teaching music with different Marching Bands in the area for several years.
Lorraine Kimminau, Instructor
Lorraine earned a Bachelor of Science in Mathematics from Eastern Michigan University. She and her husband have three children in Lake Orion schools and is a former Systems Engineer. She started with Mathnasium in January 2012.
Mathnasium LO, Instructor Alumni

Karina Lepkowski began teaching Math & Spanish full time at St. Regis Catholic School in Bloomfield Hills in the Fall of 2011

Jayme Allen moved to Cleveland Ohio in the Fall of 2011 and is teaching math at a middle school

Mary Gawlik began teaching Math full time at East Detroit High School in the Fall of 2011

Luke Harding Started Graduate School in Louisville, KY in the Fall of 2011

Nick Barnowski has moved his residence and is now working at the Rochester Hills Mathnasium