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.
At Mathnasium of Cedarburg, our tutors use the Mathnasium Method™ to help students develop a deep understanding of math. This proprietary teaching approach blends personalized learning plans with mental, verbal, visual, tactile, and written techniques, ensuring each student receives math help tailored to their unique needs and learning styles.
The Mathnasium Method™ is designed to build a strong foundation for math excellence, empowering students to truly understand and even enjoy math.
Our caring and specially trained math tutors in Cedarburg deliver face-to-face instruction in a supportive, engaging group environment. We support K-12 students of all skill levels to help them unlock their full math potential.
Learn how Mathnasium tutors helped Malachi gain confidence in math.
At Mathnasium of Cedarburg, each student receives a personalized learning plan based on a detailed assessment of their skill level, challenges, and academic goals.
This tailored approach allows students to learn at their own pace while building critical thinking and problem-solving skills, along with the confidence they need to excel in their math journey.
Discover how Mathnasium helped Maddie transform her math skills to achieve more confidence in the subject. Initially struggling with the lowest math grades in her class, Maddie worked with our tutors using a personalized approach tailored to her specific needs.
Math Tutors Near You
We specialize in math-only instruction with a customized and fun learning approach that delivers results. We proudly serve local communities, including:
Specially Trained and Caring Team
Carissa Sirrianna
Center Director
Hello! I’m Carissa, the Center Director at Mathnasium Cedarburg, and I bring over 12 years of experience in education to our center. Throughout my career, I have had the opportunity to serve as a principal while doing what I love most: helping students grow in confidence, learning, and character.
I studied Education at Wagner College, which shaped my belief that learning should be engaging, creative, and student centered. I later earned my Master’s in Business Administration from MSOE, where I developed a strong passion for understanding how to best bridge my love for working with children with systems that truly support their success.
One of my favorite parts of working at Mathnasium is watching students realize they are capable of doing math. Seeing that shift from frustration to confidence is what drives my work every day. I believe every child deserves to feel supported, capable, and proud of their progress, and I love partnering with families to help make that happen.
Charlotte B
Assistant Center Director
Hi! I’m Charlotte, and I’m so excited to be working with your child at Mathnasium! I have 15 years of teaching experience and love helping students build confidence and succeed in math. I’ve lived in the community for eight years and really enjoy connecting with local families. Outside of the center, I love baseball, reading, and spending time with my family.
John Hugh DeMastri
Assistant Center Director
Hello! I’m John Assistant Center Director at Mathnasium of Cedarburg. I’ve loved working with kids and supporting learning ever since my very first job in high school as a teacher’s assistant at a daycare. Today, I get to bring that same passion to the amazing students and families here in Cedarburg
I studied Physics and Philosophy at Northeastern University in Boston, and one of my favorite parts of working at Mathnasium is helping students understand not just how to solve a problem, but why it matters. Watching a student’s confidence grow—and seeing math click in a deeper way—is the best part of what I do. That’s why I believe so strongly in the Mathnasium approach: it turns math from a struggle into something students can truly enjoy and feel proud of. Outside the center, you might find me at a local concert, playing chess, or relaxing with my dog and a good book.
John Osborne
Owner
Hi, my name is John Osborne, and I’m the Owner of Mathnasium of Cedarburg. I first discovered Mathnasium as a parent—I enrolled my son, hoping it would help him build confidence in math. What I didn’t expect was how much he loved coming here. The reward system, the caring instructors, and the fun, game-based approach made math feel exciting instead of overwhelming. Seeing that transformation firsthand is what inspired me to become involved in Mathnasium and bring that same experience to more families in our community.
Outside the center, I work in finance. I’m a CFA charterholder with an MBA from the Kellogg School of Management, a BS in Business Administration (with a minor in Mandarin Chinese) from the University of Richmond, and a certificate in Quantitative Data Science in Finance from Stevens Institute of Technology. But the title I’m most proud of is “parent”—and I bring that perspective into every decision we make at Mathnasium.
Fun fact: I lived and worked in Shanghai for four years, and I love sharing stories about it with students who are curious about the world!
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 Cedarburg is located at W61N306 Washington Ave, Cedarburg, WI 53012. We’re just off historic Main Street in downtown Cedarburg, in the same building—and just behind—the Washington Ave Starbucks. Our center offers a welcoming environment for families, with convenient access to nearby shops and restaurants.
We proudly serve students from across Cedarburg and Grafton. Local schools we support include:
Thorson Elementary (Cedarburg)
Parkview Elementary (Cedarburg)
Webster Middle School (Cedarburg)
Westlawn Elementary (Cedarburg)
Kennedy Elementary (Grafton)
John Long Middle School (Grafton)
Mathnasium of Cedarburg supports students in any K–12 math class or topic, including arithmetic, algebra, geometry, trigonometry, statistics, and more advanced high school math.
Our caring tutors follow personalized learning plans tailored to each student’s needs to build foundational skills, improve grades, and grow confidence in math.
We provide premium value tutoring through a flat monthly membership and a one-time enrollment fee. Students typically attend two to three times per week.
After a diagnostic assessment, we create a personalized learning plan with a recommended schedule based on each student’s goals. For pricing details, contact us at [email protected].
Each student begins their enrollment process with a diagnostic assessment that helps us understand their current math skills, learning gaps, and academic goals.
We use this to develop a personalized learning plan tailored to their individual path for success.
At Mathnasium of Cedarburg, we use the Mathnasium Method™, our proprietary approach that combines personalized learning plans with proven instructional techniques to help students truly understand and even enjoy math.
Our tutors build on each student’s existing knowledge, introducing new concepts step by step and nurturing lasting skills and confidence.
Yes! We support students of all skill levels.
Students who are catching up receive caring, personalized instruction to rebuild foundational skills and confidence. Advanced students benefit from enrichment programs designed to challenge and expand their math thinking.
Absolutely! We welcome students from homeschool, public, and private school backgrounds across Cedarburg, Grafton, and nearby areas.
Our flexible approach and personalized instruction work well alongside homeschooling programs and goals.
Yes. Tutors make time during each session to help students with their math homework and ensure they understand classroom material.
No. All learning takes place during sessions at the center. We do not assign extra homework—students stay focused and make real progress while they’re here.
Yes! Mathnasium of Cedarburg helps students prepare for school-based and standardized math tests, including state assessments, ACT®, and SAT®.
Our test prep includes personalized learning plans, targeted practice, and confidence-building strategies to help students perform their best.
☀️ Save $100 with our Early Bird Summer Offer! Enroll by May 31st and take advantage of $100 off
Schedule Free Consultation
At Mathnasium of Cedarburg, we’re confident you’ll love your experience with us!
Contact UsW61N306 Washington Avenue
Cedarburg, WI 53012
| Call: | (262) 450-4208 |
| Email: | [email protected] |
Mon, Tue, Wed, Thu
3:30pm-7:00pm
Sat
10.00am-2:00pm
Mon, Tue, Wed, Thu
1:30pm-7:00pm
| Mon, Tue, Wed, Thu: | 3:30pm-7:00pm |
| Sat: | 10.00am-2:00pm |
| Mon, Tue, Wed, Thu: | 1:30pm-7:00pm |
(262) 450-4208
