K. Zingsheim
I bring my 17 year old son here and he LOVES coming here. He feels so confident when he leaves and says the wa...
See more reviews here




K. Zingsheim
I bring my 17 year old son here and he LOVES coming here. He feels so confident when he leaves and says the wa...
See more reviews here
We support students who love math with personalized enrichment, with programs for high-achieving elementary learners to competition preparation and advanced topics that inspire curiosity and mathematical excellence.
High-achieving elementary school students explore advanced concepts beyond grade-level through our specialized program focused on algebraic thinking, justification and reasoning, strategic problem-solving, and flexible number sense that builds foundations for future success.
We prepare students for math competitions, including AMC, MathCounts, and Math Olympiad, through expert training in advanced problem-solving strategies, pattern recognition, and creative thinking techniques needed to excel in competitive settings.
Students preparing for or currently enrolled in honors and accelerated courses receive targeted support that builds mastery of advanced topics, strengthens problem-solving skills, and develops the confidence needed to excel in rigorous coursework.
Mathnasium of Oconomowoc welcomes students in Oconomowoc who are performing at or above grade level to our personalized math enrichment program.
Whether your student wants to explore new topics, apply for accelerated programs, or prepare for tests and competitions, our program provides the structure and support to reach their full potential.
Our math enrichment program is powered by the Mathnasium Method™, a proprietary approach that builds deep conceptual understanding.
We help students connect the dots between topics and develop logical thinking, precision, and confidence. Sessions are delivered through live, face-to-face instruction in a caring and engaging group environment, both in-center and online.
Each student begins their Mathnasium journey with a diagnostic assessment, allowing us to create a personalized learning plan that goes beyond the school curriculum.
Whether they want to deepen their understanding of grade-level topics or dive into more advanced material like algebra, geometry, or number theory, we build a roadmap tailored to their goals.
Our Results
94%
Math Skills
of parents report an improvement in their child’s math skills and understanding.
93%
Attitude
of parents report improved attitude toward math after attending Mathnasium.
90%
Success
of students saw an improvement in their school grades.
Our Results
The Proof Is In The Numbers
Math Skills
of parents report an improvement in their child’s math skills and understanding.
Attitude
of parents report improved attitude toward math after attending Mathnasium.
Success
of students saw an improvement in their school grades.
Math Enrichment Near You
Mathnasium’s specially trained math tutors work with students across the 53018, 53036, 53058, 53066, and 53069 zip codes. We proudly serve families throughout Oconomowoc and nearby areas, including:
Specially Trained and Caring Team
Jenna Riesterer
Center Director
My name is Jenna Riesterer, and I’m so excited to step into the role of Center Director at Mathnasium of Oconomowoc! I’m originally from Menomonee Falls and graduated from UW–Madison with a degree in Marketing and a minor in International Business. My studies gave me a strong foundation in math and analytics and a real appreciation for how math shows up in everyday life.
When I’m not at Mathnasium, you’ll probably find me reading, running (I’m currently training for the Lakefront Half Marathon), checking out a concert or musical, or traveling. An all-time favorite trip of mine was a semester abroad in Milan, Italy, a time I still love talking about whenever I get the chance.
I’m truly excited to get to know all of you and your amazing families. It’s an honor to be part of a team that helps students grow in confidence and thrive in math!
Teddy Legler
Assistant Center Director
Hello, my name is Teddy Legler and I am thrilled to be the Assistant Center Director for the Oconomowoc and Hartland Mathnasium centers! I was born and raised in St. Louis, Missouri but my grandparents lived in Wisconsin so I’ve been around Madison and Milwaukee a bunch over the years (and I’ve been a Packers fan my whole life). I graduated from Truman State University with a degree in Mathematics and a minor in Studio Art. In my free time I enjoy reading, playing volleyball, hanging out with my cat, and listening to music. I love math and am super excited to help students understand and enjoy it as much as I do!
Derek Pipkorn
Owner
Hi! I'm Derek, the Owner of Mathnasium of Oconomowoc. I also own Mathnasium centers in Brookfield, Hartland, Mequon, Waukesha, and Wauwatosa - yes, I love Mathnasium! Prior to becoming a Mathnasium owner, 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 Bachelors in Middle Childhood - Early Adolescence Education with math emphasis from the University of Wisconsin-Milwaukee. I've been actively involved in math organizations at the State and National level. I was the Chair of the Classroom Resources Committee for the National Council of Teachers of Mathematics and 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 a love of math to all children in our community. Married to Jillian and dad to Lucy & Ellie, I love staying active in the community and enjoying all that the Greater Milwaukee area has to offer.
Jillian Pipkorn
Director of Marketing
Hello! I'm Jillian, the Director of Marketing and Community Outreach for six Mathnasium locations in the greater Milwaukee area that my husband, Derek, and I own -- Brookfield, Hartland, Mequon, Oconomowoc, Waukesha, and Wauwatosa. I am thrilled to be a part of our growing Mathnasium team and love the impact that we are making in children's lives and our local communities. I enjoy making connections in the community with schools, kid-centric organizations, and other small businesses. (Let's connect if you fall into one of these groups!) I am a graduate of Indiana University with a degree in Marketing, and prior to joining Mathnasium spent 12 years developing Marketing Strategy at Kohl's. I also have years of experience event planning and fundraising for Susan G. Komen as a volunteer in the fight against breast cancer. When I'm not working on all things Mathnasium, I enjoy spending time with my two daughters Lucy & Ellie, being active, trying new recipes from my cookbook collection, and attending musicals.
Angie Cramer
Managing Director
Hello! I'm Angie, Managing Director for the six Mathnasium locations in the greater Milwaukee area, owned by the Pipkorns. I hold a Bachelor’s degrees in Elementary and Special Education from the University of Missouri and a Masters in Educational Leadership from Christian Brothers University and a Doctorate in Leadership from Maryville University. Prior to joining the Mathnasium team, I was a classroom teacher, school principal, district leader, executive coach, mentor, and professional development leader. I love working with our Center Directors and supporting the incredible work happening across this network of Mathnasium centers! When not at work, you can find my husband Steve and I on the ice at the Milwaukee Curling Club, or in the stands cheering on the Bucks, Brewers, Packers, Badgers, or Admirals with our sons Tom and Ben.
Ali Gilbertson
Director of Operations
Mathnasium has been a part of my journey since 2011, when I first became an instructor in high school. Nearly a decade later, I was thrilled to rejoin the company as a Center Director, and now, as Director of Operations, I have the privilege of working with each of our centers to ensure every student has an incredible learning experience.
With over four years on this amazing team, I’m deeply passionate about helping students build confidence in their math skills and discover the fun in math. What I love most about Mathnasium is the relationships we build—watching students grow, succeed, and develop a love for learning is the most rewarding part of what we do!
Our Instruction Staff
Math Instructors (Tutors)
Whether they would like to attend sessions in-center or online, students can take 3 easy steps to enroll at Mathnasium.
All students begin their Mathnasium journey with a diagnostic assessment that pinpoints what they already know and what they still need to learn.
FAQ
Mathnasium of Oconomowoc is located at 1456 Olympia Fields Drive, Oconomowoc, WI, providing easy access for families in Oconomowoc, Summit, Delafield, Okauchee, Monterey, Ixonia, Concord, Dousman, and surrounding communities.
Students can attend our math enrichment program either in person at our learning center or through live, face-to-face online instruction with the same specially trained tutors.
We proudly serve students from across the area, including local schools such as:
Oconomowoc High School
Nature Hill Intermediate
Silver Lake Intermediate
Greenland Elementary
Ixonia Elementary
Meadow View Elementary
Park Lawn Elementary
Summit Elementary
Lake Country Classical Academy
Adeline Montessori
Holy Trinity Lutheran
St. Jerome Parish School
St. Matthew's Lutheran
St. Paul's Evangelical Lutheran
Our math enrichment program is designed for K-12 students who are performing at or above grade level and are ready to go further in math.
The program is ideal for students who want to:
Explore topics beyond the standard school curriculum
Strengthen logical reasoning and problem-solving skills
Prepare for math competitions or accelerated coursework
Apply for advanced or honors math programs
Develop a lasting interest in higher-level mathematics
Absolutely! Our math enrichment program is an excellent fit for students already in honors or advanced math classes.
We create a personalized learning plan built around each student's current coursework and goals, providing the targeted support they need to deepen their understanding, stay ahead of the pace, and build the confidence to excel in rigorous academic settings.
Yes! Our specially trained tutors can align instruction with your student's honors or advanced math class to help them prepare for upcoming exams.
Yes! Our Competition Mathematics program is specifically designed for students preparing for events such as:
AMC (American Mathematics Competitions)
MATHCOUNTS®
Math Olympiad
Mathematical Kangaroo™
And other competitive math settings
We follow the Mathnasium Method™, our proprietary teaching approach designed to promote math mastery through personalized instruction, diagnostic assessments, and interactive learning.
Each student begins their Mathnasium experience with a diagnostic assessment so we can identify their current skills, strengths, and goals. From there, we create a personalized learning plan that challenges and motivates them to progress through advanced concepts at their own pace.
Sessions are delivered through live, face-to-face instruction in a caring and engaging group environment, either in-center or online.
Yes! While our enrichment program is designed for students performing at or above grade level, we recognize that every student's math journey is unique.
If your student has strong potential and a genuine interest in going further, our specially trained tutors will work with them to build the foundational skills they need while introducing enrichment-style thinking and challenges at a pace that fits where they are.
The diagnostic assessment allows us to understand exactly where your student is in their math journey, including their current strengths, areas ready for deeper exploration, and enrichment goals.
We use these insights to create a personalized learning plan that provides the right level of challenge from day one, so students feel motivated and appropriately stretched from the very first session.
Absolutely! While our enrichment instruction typically goes beyond grade-level material, we can align personalized learning plans with each student's school curriculum and long-term academic goals, including:
Moving into accelerated or honors math tracks
Preparing for advanced courses such as Algebra, Geometry, or beyond
Building skills needed for school placement exams
Supporting key academic transitions, such as from elementary to middle school math
Yes. Mathnasium of Oconomowoc offers live, face-to-face math enrichment online, led by the same specially trained tutors who teach in our Oconomowoc center.
Students receive the same personalized learning plan and caring instruction whether they attend sessions online or in person.
The cost of math tutoring programs at Mathnasium of Oconomowoc varies based on the student's individual plan and session schedule. We charge a flat monthly membership fee.
For specific pricing information, please contact our center directly at [email protected]. We're happy to walk you through the options and find a plan that fits your student's goals and your family's needs.
Getting started is simple! Contact us or schedule a free assessment to begin.
During the assessment, we'll learn about your student's current skills, interests, and enrichment goals, and use those insights to build their personalized learning plan.
Most students begin their Mathnasium sessions within just a few days of their assessment.
We are so confident that you'll love Mathnasium that we offer a 30-Day Satisfaction Guarantee!
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1456 Olympia Fields Drive
Oconomowoc, WI 53066
| Call: | (262) 599-5815 |
| Email: | [email protected] |
Mon
2:00PM - 6:30PM
Tue
10:00AM - 12:00PM + 2:00PM - 6:30PM
Wed
2:00PM - 6:30PM
Thu
10:00AM - 12:00PM + 2:00PM - 6:30PM
Fri
10:00AM - 12:00PM
Mon
2:00PM - 6:30PM
Tue
10:00AM - 12:00PM + 2:00PM - 6:30PM
Wed
2:00PM - 6:30PM
Thu
10:00AM - 12:00PM + 2:00PM - 6:30PM
Fri
10:00AM - 12:00PM
| Mon: | 2:00PM - 6:30PM |
| Tue: | 10:00AM - 12:00PM + 2:00PM - 6:30PM |
| Wed: | 2:00PM - 6:30PM |
| Thu: | 10:00AM - 12:00PM + 2:00PM - 6:30PM |
| Fri: | 10:00AM - 12:00PM |
| Mon: | 2:00PM - 6:30PM |
| Tue: | 10:00AM - 12:00PM + 2:00PM - 6:30PM |
| Wed: | 2:00PM - 6:30PM |
| Thu: | 10:00AM - 12:00PM + 2:00PM - 6:30PM |
| Fri: | 10:00AM - 12:00PM |
Have questions? Contact us.