Mathnasium 18905 West Capitol Drive, #108, Brookfield WI 53045 (262) 505-5723

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Now offering both an IN-CENTER and an ONLINE program. Which is best for your family?

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:

All are highly qualified, experienced, and rigorously trained individuals who must first pass a comprehensive set of verbal and written assessments covering all aspects of mathematics and instruction philosophy before even being considered for a position. Background checks are an essential part of the hiring process as is a "trial run" interaction with the students. Finally, all instructors are required to undergo continuous training. Our staff not only does an excellent job of teaching math, but they create a positive, enthusiastic atmosphere providing the support and encouragement your child may need. All of our instructors are passionate about math and love to work with the kids. They are there to help your child succeed in school and in life. 

CenterDirectorAli Noltner, Center Director 

Welcome!  I’m Ali Noltner, the Center Director for Mathnasium of Brookfield. I have a passion and love for teaching and mentoring students.  After learning about the Mathnasium Method from my experience as an instructor, I knew Mathnasium was the perfect home for me.  I work to develop a true partnership among the student, parents, school, and Mathnasium staff to provide the support a student needs to develop and improve math understanding and achievement.  Mathnasium is meaningful to me because students make impressive gains in math, but also improve self-confidence, homework habits, and attitudes toward school.  I graduated from the University of Wisconsin - Stout with a degree in Retail Merchandising. I'm excited to share my love of math and business in this role. But most importantly, I'm looking forward to getting to know all of the families that come through our doors, and the community to continue to grow our center! 


CenterDirectorDerek Pipkorn, Owner

Hi! I'm Derek,  the owner of Mathnasium of Brookfield. I also own Mathnasium of Mequon and Mathnasium of 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 BS 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 previously 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, dad to Lucy, and dog owner of Willie (corgi), I love staying active in the community and enjoying all that the Greater Milwaukee area has to offer.


Chris, Assistant Center Director

Howdy! My name is Chris and I study engineering at UW Milwaukee. I love designing things and figuring out how stuff works. My dream is to one day design a rollercoaster, even if I have to build it in my own backyard :) When I’m not at school or work, I like going to the movies, playing games, and building Legos. Growing up, I was lucky to have some excellent teachers that instilled in me a lifetime love for learning that I hope to pass on to the next generation.

Amber, Lead Instructor

Guten Tag! My name is Amber and I’m a senior at UW-Whitewater. I’m a Chemistry major with an emphasis on Biochemistry and Music hoping to become a Veterinary Oncologist or Ophthalmologist. Ever since my brother was born paralyzed I have developed a passion for helping students reach their full potential and changing as many lives as possible. I also teach kids instrumentally for the Milwaukee Youth Symphony Orchestra (MYSO) and theatrically for Children’s Theater. My hobbies include math, playing violin/cello/piano, drawing, volunteering, sports, and of course laughing (so come to me with any jokes). Fun fact: a pizza that has a radius “z” and height “a” has volume Pi*z*z*a. Working at Mathnasium is an honor and I look forward to enhancing students’ math skills through 96.95% instruction and 3.05% jokes.


Larry, Instructor

Hello! I’m Larry and I am a semi-retired WCTC instructor who joined the Mathnasium staff in July 2019. I retired in 2015, but I am still teaching part-time. I graduated from Marquette University, with a degree in Mechanical Engineering and worked in the Milwaukee area in quality control and manufacturing engineering positions. After I joined WCTC, I provided onsite training for employees at many companies, was involved in self-paced, individualized courses on campus, and supported our quality improvement teams. I transferred to the Math department, where I taught a variety of Math courses. While in the Math department, I completed 12 graduate credits in Mathematics at Marquette. I enjoy seeing students gain knowledge and skills in Math and the confidence that comes along with that growth. It is great to see the enthusiasm of the students and staff at Mathnasium. The students are eager to learn as they complete the worksheets in their learning plans. I like to keep a light, relaxed tone and know that humor can add to creating and maintaining a good learning environment. I follow the main professional and college sports, along with news and business trends.I live in Brookfield with my wife Joyce. 

Maanya, Instructor

Hi! My name is Maanya, and I am currently a freshman at USC. I love learning, and I always take the opportunity to learn as much as I can whether I am in school or not. In April, in my freshman year,  I became an international champion for DECA, a 300,000 member competitive organization that exposes high school students across the globe to the business world. I currently am a member of the Wisconsin DECA state board. I also took 10th in the state for forensics, a competitive public speaking association, and I am the captain and founder of my school’s debate team. I also really love tennis! I am so excited to be a member of Mathnasium and to instill my love for learning in other students!

Mason, Instructor

 Hello! My name is Mason and I am a senior at Brookfield East High School. I have been a club swimmer for 10 years and through this experience, I have been able to work with my younger teammates quite a bit. Whether it be “buddy swim meets” or all team relays, these experiences have helped me learn that I love working with kids and helping them further their skills. That’s why when I heard about Mathnasium I knew it would be the perfect job opportunity for me! My other interests include hiking and biking with my family, traveling, and playing with my two dogs. I am also President of my class and I participate in my high school debate and forensics program. I hope to see you soon at Mathnasium!

Molly, Instructor

Hi! I'm Molly and I'm a sophomore at UW Madison. I'm studying educational policies and math with plans of becoming a high school math teacher. In my free time, I love to play volleyball, paint, and hang out with friends, as well as get involved in the community through my church and organizations like A Moment of Magic.

Shagun, Instructor

Hi! My name is Shagun and I am currently a senior at Brookfield East High School. Working with kids is a passion of mine and my love of math just makes being an instructor even better. In addition, I play tennis year-round as well as intern for a state representative. In the future, I would love to be a lawyer or involved in politics in some way. In my spare time, I love to watch Packer games or hang out with my friends and family. I also enjoy traveling during the summer. So excited to see all of you at Mathnasium!

Dan, Instructor

Hey guys and gals! My name is Dan and I graduated from Waukesha West High School in 2017. Since I was little I have had the desire to be a creator and designer of my own inventions. With that said, I am pursuing the major of electrical engineering and plan on going to UW Platteville. I am excited to show my love for math by tutoring the younger generations and encouraging them to develop the passion of enjoying math. I also enjoy working out, going to the dog park, traveling, and watching shows/movies on Netflix and Hulu. 

Mridula, Instructor

Hi! My name is Mridula and I am a senior at Brookfield East High School. I love to learn new things, and math and science are my favorite subjects. I am on the executive board for Interact volunteer club as well as our school's environmental club. Outside of school, I enjoy doing art, reading and goofing off with my friends. After high school, I plan on working towards a career in biomedical research. I can't wait to work with you at Mathnasium! 

CenterDirectorCaroline, Instructor

Hi!  My name is Caroline, and I am a senior at Divine Savior Holy Angels High School. I am planning on majoring in Mathematics while following a pre-med track to pursue a career in Pediatric Medicine. I have always considered my two biggest passions to be math and kids and the wonderful thing about being an instructor at Mathnasium is that it combines those passions. Outside of Mathnasium, I enjoy hanging out with friends, working out, playing with my bunnies, leading my school’s Respect Life Club, and computer programming. I am excited to be working with all of you at Mathnasium!

Logan, Instructor

Hello! My name is Logan and I am a freshman at Brown University. From participating in math competitions to having fun learning new calculus formulas, math has always been a passion of mine. Outside of loving math, I enjoy playing tennis, teaching, learning new languages, and traveling. If you ever want to speak to me in Chinese, I would be more than delighted, as I have studied it for 5 years. I also hope to pursue a future career path as an environmental lawyer. I am so excited to work with you all in the future and help you develop the love for math that I have! 

Albert, Instructor

Hello! My name is Albert. I’m currently a junior at Marquette University, planning on majoring in biochemistry. I’ve enjoyed working with and teaching others, from helping fellow peers out on homework, to taking up leadership roles at my local church’s VBS. Outside of work, I enjoy hanging out with friends, playing video games, and drawing cartoons! I hope to see all of you in Mathnasium, to learn the weird (but wonderful) world of mathematics. 

Riley, Instructor

Hi everybody! My name is Riley and I am a senior at DSHA. I am a total STEM nerd, packing my day with as many math and science classes as I possibly can. In school, I participate in the STEM Scholars program, National Honors Society, and SMART (Students Modeling A Research Topic) team, where we study and present on the structure and function of proteins. I also have a passion for the performing arts, as I participate in my school's show choir, the Angelaires, am part of Midwest Connections Dance Company at Anita's Dance Center, and have performed in over 15 theater productions in my high school career. In my free time, I enjoy reading pretty much any book I can get my hands on and jumping on my trampoline. I absolutely love working with kids and helping them to discover their true potential. I am looking forward to sharing my love of math with you and your kids!   

CenterDirectorDavid, Instructor

I'm David, a Junior at Heritage Christian Schools in New Berlin.  I'm currently working on classes like AP Calculus and AP Biology.  I love to help people learn and grow whether it is in math or at my church in the children's ministry.  Outside of the classroom, I enjoy spending time with my friends, playing video games, and learning new things.  I'm excited to see you and get to know you at the Mathnasium Center! 

CenterDirectorSoumaya, Instructor

Hi! My name is Soumaya, and I am so excited to be an instructor at Mathnasium! I’m an incoming junior at Hamilton High School, and math is, of course, my favorite subject. I love helping people and teaching kids, and I am looking forward to being able to do so as part of this team! I’m a third-degree black-belt in martial arts, and in addition to that, in my free time, I enjoy reading, singing, dancing, and playing piano and violin.

CenterDirectorRich, Instructor

Hi!  My name is Rich and I'm an instructor at Mathnasium of Brookfield and Whitefish Bay.  I worked for 35 years as an actuary, consulting with the largest companies in the country.  I also tutor adult students toward their GED through Literacy Services of Wisconsin.  While new to Mathnasium, I love working with kids to help them learn math to be successful in school and beyond. I especially like teaching math tricks and the unique Mathnasium approach that gives students a clearer understanding of how to solve math problems. I graduated from the UW - Madison with a degree in Actuarial Science. I have always loved math and knew this was the right field for me very early in life. My two sons are very strong in math, and I’m proud they are also Mathnasium instructors. In my spare time, I like reading, cycling, and volleyball.  I have lived in Wisconsin most of my life and am a diehard Packers, Brewers, and Badgers fan.

CenterDirectorAbhi, Instructor

Hi! My name is Abhi, and I’m a freshman at the University of Wisconsin - Madison, where I’m a Neurobiology major planning on attending medical school to eventually become a retinal ophthalmologist. In my free time, I run a small clothing business called Sifar Streetwear, and enjoy reading, playing basketball, or hanging out with friends. Math has always been one of my favorite subjects in school, from basic addition to advanced trigonometry, so I’m excited to pass on my knowledge and assistance as an instructor at Mathnasium. I look forward to getting to know and instructing the future generation of mathematicians here at Mathnasium!

CenterDirectorBen, Instructor

Hi, my name is Ben! I am an incoming freshman at the University of Wisconsin. I love watching sports like baseball, basketball, and football and I also enjoy playing golf. I have always been intrigued by the statistical aspect of sports, which led me to develop a passion for math. In the upcoming years, I plan on pursuing a degree in actuarial science. I’m looking forward to working with you at Mathnasium!

Caroline, Instructor

Hi everyone! My name is Caroline, and I am a freshman at the University of Notre Dame.  What I love most about math is that it is one field of study we use every day. Whether we are counting fingers and toes or making change at the grocery store, we all need math. I am so excited to help Mathnasium students develop their own particular passion for learning and problem-solving! In the future, I would like to attend dental school and become an oral surgeon. For now, I enjoy volunteering at the Ronald McDonald House and interning at a local dentist's office. My favorite hobbies are photography and kayaking on the lake (especially when it's windy!). I am so lucky to be a part of such an amazing team at Mathnasium! 


Everett, Instructor

Hello, fellow Math enthusiasts! My name is Everett and I am a junior attending UW-Madison and study Biomedical Engineering. I have had a deep love and appreciation for math ever since I was young and it has always been my favorite subject. That, along with my social nature, is what led me to my work at Mathnasium. I am so happy to be able to work with people on math and to help them enjoy it as I do, while sprinkling some casual conversation and corny jokes in there as well. Outside of math, I am a huge movie fanatic and enjoy football and basketball. 

Abby, Instructor

Hi! My name is Abby, and I graduated from Sussex Hamilton High School in 2019. I am currently a sophomore at Rice University in Houston, TX majoring in bioengineering. Through my years of school, I have really grown to enjoy learning, especially math. I also love working with kids and am very excited to help students reach their learning goals while simultaneously spreading my passion for math. Outside of school at Rice, I play powderpuff, am a new-student advisor, and am a member of my residential college’s government. I also enjoy figure skating (I am a former Team USA synchronized skater), baking, and playing with my puppy Winston in my free time. I am very excited to be a part of the amazing team at Mathnasium, and I hope to see you there!

CenterDirectorKimberly, Instructor

Hi! My name is Kimi and I am a junior at UW Madison pursuing a major in mathematics. I am also on my way to becoming a second-degree black belt in Taekwondo. As a black belt and an instructor at Mathnasium, it is my responsibility to be a leader by setting a good example for my peers and students and do my part for the community. When I’m not at Mathnasium or school, I like to be outdoors, hang out with friends, and I love to play video games.

Niko, Instructor

Hey!  My name is Niko and I am currently studying Business Analytics at the University of Notre Dame.  I graduated from Marquette University High School in 2018 and reside in the suburb of New Berlin.  Math has always been my favorite school subject since I was young and I hope to share my love of this material with you all.  In my free time, I enjoy playing baseball, golf, and Spikeball, but my favorite by far is basketball.  I also like to read and spend a lot of time outside with friends.  

CenterDirectorGretchen, Instructor

Hi everyone! My name is Gretchen. I grew up in Menomonee Falls, graduated from Brookfield East High School in 2017, and am currently studying chemical engineering at Montana State University in Bozeman. I look forward to sharing my passion for math with the students of Mathnasium! In my free time, I enjoy traveling, rock climbing, reading, playing the piano, and hiking with my dog.