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Our Team

Our specially trained math instructors will teach your child how to understand math in an individual setting; our unique approach enables us to explain concepts really well and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps kids thrive and learn! Read below to learn more about our talented team:

 Derek Pipkorn, Owner/Center Director 

Hi! I'm Derek,  the Owner and Center Director of Mathnasium of Wauwatosa. Prior to opening this Mathnasium center, I worked as a Middle School Math Specialist in the Mequon-Thiensville School District. I previously taught elementary and middle school students in Milwaukee Public Schools and the West Allis-West Milwaukee School District. I have a Masters of Educational Leadership from Cardinal Stritch University and a BS in Middle Childhood - Early Adolescence Education with math emphasis from the University of Wisconsin-Milwaukee.

I am actively involved in math organizations at the State and National level. I am currently the chair of the Classroom Resources Committee for the National Council of Teachers of Mathematics and recently finished a term on the Board of Directors for the Wisconsin Math Council. I have taught and tutored children of all ages, and I am committed to bringing the Mathnasium Method to the children in the community I live in. Married to Jillian and dog owner of Willie (corgi), I love staying active in the Wauwatosa community and enjoying all that the Greater Milwaukee area has to offer.


 Mary, Instructor

Hi! I’m Mary! I love math and am very excited to help in Tosa’s new Mathnasium!  I’m from the Lexington, Kentucky area and moved to Wauwatosa in 2014 where I really enjoy the community. I graduated Magna Cum Laude from Eastern Kentucky University with teaching degrees for middle school mathematics and special education K -12 and completed my Masters Degree in Special Education. I’ve taught middle school mathematics for over 20 years, during which time I’ve served on various teams and committees to advance math education. I’ve obtained National Board Certification from the National Board for Professional Teaching Standards in middle school math and have mentored and instructed teachers in their pursuit of education excellence. I'm currently a math interventionist for the West Allis - West Milwaukee School District. My goal is to understand how individual students can relate to math in a way that makes sense to them. When I’m not teaching, I’m usually enjoying my family and their many activities. I love to crochet and play math-related video games, as well as to travel and the fine arts. I believe learning is fun!


 Jon, Instructor

Hello! My name is Jon and I am an instructor here at Mathnasium of Wauwatosa. I graduated from UW-Whitewater with a degree in Finance. I have always excelled at math and found it fascinating how math can be used in almost every situation in life. I’ve lived in Wisconsin my whole life and graduated from Wauwatosa East, where I ran track and played football. I enjoy playing/watching most sports, especially the Badger, Packers and Bucks. Recently, I worked as a Walt Disney Intern for six months in Florida, where I enjoyed working with thousands of kids every day! I can’t wait to share my passion of math with the students in the Tosa area.


 Nate, Instructor

Hey I’m Nate! I am currently a junior attending UW-Milwaukee pursuing my Bachelors Degree in Business Accounting and Finance. I love all things math, including Geometry, Trigonometry, and Calculus. I am half Vietnamese, half American, and Wisconsin born and raised. That being said, I am a huge Packers, Bucks, and Brewers Fan! I am originally from a small town called East Troy, just 40 mins south of Wauwatosa.  I played varsity football and track and field in high school and still like to stay active around my busy college schedule. Some of my hobbies include playing basketball with my friends, fishing, working out, and going on nature walks. 


 Katie, Instructor

Hey there! My name is Katie and I’m excited to be an instructor at Mathnasium of Wauwatosa! I am an elementary Special Education Teacher in the Milwaukee Public School District which I thoroughly enjoy every day. I graduated from the University of Wisconsin-Green Bay with a Bachelor’s Degree in English Education. After working with students who were struggling learners, I found my calling and earned my degree in Cross-Categorical Special Education. I am a firm believer in being a lifelong learner and began taking graduate math classes through the University of Milwaukee in the area of Teaching Elementary Math. Much like the students who come to Mathnasium, math wasn’t always my strongest subject. I hope to instill a lifelong curiosity of mathematics into the students who come to Mathnasium. In my spare time, I LOVE watching Wisconsin sports (especially the Packers) and exploring all that Milwaukee and the rest of Wisconsin has to offer.