Mathnasium 3780 Marketplace Drive NW, #103, Rochester MN 55901 (507) 722-2732

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Now offering Online & In-center instruction!!

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:


 Gayathree Arun, Owner & Center Director 

Gayathree has an MBT (Masters in Business Taxation) from Carlson School of Management at the University of Minnesota, Twin Cities Campus.  She is also a CPA (Certified Public Accountant), CMA (Certified in Management Accounting), and CFM (Certified in Financial Management).  Prior to opening her Mathnasium center in Rochester, Gayathree, specializing in Corporate State and Local Tax, has worked for over 15 years in public accounting in reputed and well known global accounting firms and Fortune 500 companies.

The transition from giving up a seemingly lucrative corporate accounting job to owning a Mathnasium center occurred on seeing the impact the Mathnasium method had on her own two children.  Both her son, now in middle school, and her daughter, now in elementary, went from treating Math as an academic ‘chore and bore’ to a fun activity.  She is amazed at how her son would now remind her (when typically, it would have been the other way around) that he needed to be taken to Mathnasium that day per his after-school schedule!  Before her own eyes, the Mathnasium Method transformed Math learning from a household anxiety to a fun activity, and eventually to a subject in which her children are currently excelling! 

This personal experience gave birth to the thought and eventually into the act of starting up, owning, and running her own Mathnasium center with the objective of helping every child to truly understand math by teaching it in a way that makes sense to them. Gayathree is enthusiastically committed and excited to bring the Mathnasium Method to the children in the Rochester community.

Arun Natarajan, Instructor

Arun has a Ph.D. in Materials Science and Engineering from The Johns Hopkins University, Baltimore, MD.  Along with his PhD, he also has a M.S. in Solid State Physics.  Arun is passionate about Math, believing that a Math background is essential for success regardless of profession: be it an engineer or an architect, an artist creating art that involves shapes and geometries, or a musician who practices and performs to octaves of notes or fractions thereof... the world is Math driven and there are dimensions, shapes, geometries, numbers everywhere we look.  He believes therefore in having a solid foundation in Math and is passionate in teaching, sharing and learning Math constantly from peers and students.  He also works at a Fortune 500 hi-tech company in Minnesota which involves harnessing the strength of nanotechnology to provide tomorrow’s solutions.  He spends majority of his free time on Math education for all ages.

Greg Schumacher, Sr. Instructor

Greg has a Bachelor's in Mathematics and Computer Science from the University of Minnesota.  Greg has been a private tutor, a computer programmer, a Teaching Assistant at Mankato State for the Mathematics department, and a Water Safety Instructor.  He is currently pursuing a degree in Education.  In his spare time, Greg enjoys complicated math puzzles and running. 

Rachel Geroux, Instructor

Rachel Geroux is currently a Clinical Research Coordinator in the Department of
Cardiology at the Mayo Clinic.  She earned a Bachelor's degree in Pharmacology/Toxicology and a second major in Microbiology from the University of Wisconsin- Madison in 2019. During
her time in school, she helped tutor middle school students in math and science as well as college students with a variety of subjects including physics, statistics, math, and life sciences. Rachel has also worked in several research labs in the disciplines of cardiovascular diseases, immunology, endocrinology, and neurobiology. Additionally she volunteered with Expanding Your Horizons, which aimed to expose young girls to careers in
math and science, and has volunteered with Badger Volunteers, Meriter Hospital, Capitol Lakes, and Olmsted Medical Center. Rachel completed Mathnasium's Instructor certification program in October of 2019.

Susanna Laughland, Instructor

Susanna has a Bachelor's degree in Education and Associate Degree in Liberal Arts. Susanna cur has been a private tutor, a computer programmer, a Teaching Assistant at Mankato State for the Mathematics department, and a Water Safety Instructor.  He is currently pursuing a degree in Education.  In his spare time, Greg enjoys complicated math puzzles and running.


Colleen Hanson, Instructor

Colleen is currently pursuing a Master of Arts in Teaching Life Sciences at Bethel University and is expected to graduate next year.  She obtained a Bachelor's degree in Environmental Engineering from Michigan Tech in 2015.  While at school, Colleen was active in many clubs and organizations and since returning to school, she has been a part of a number of tutoring programs.  Colleen has always enjoyed learning and being amazed at the world around her and hopes to pass that on to all that she interacts with including future students.

Bradley Allen, Student Instructor

Bradley is currently a senior at Lourdes High School. He is interested in studying electrical engineering at the University of Minnesota or Notre Dame after he graduates. Hanging out with his friends and playing basketball are this favorite things to do in his free time in addition to participating in many school activities like National Honor Society, student council, and the varsity soccer team. 

Brady Zimmerman, Student Instructor

Brady is a Junior in high school at Schaeffer Academy. He is interested in pursuing a degree in either data science or organ performance. He plays the organ and the piano, He is currrently interning at Mayo with a data scientist and also helps run a math club at school. 


Call Now (507) 722-2732 and Get Started!