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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:

Our staff members are highly qualified and rigorously trained individuals who must first pass a comprehensive set of assessments covering all aspects of mathematics before even being considered for the Instructor position.  Background checks are an essential part of the hiring process as is a "trial run" interaction with the students. Our instructors are required to undergo continuous training. Drop by to meet the instructors and owners anytime!


Joseph Waterson, Center Director

Joseph grew up in a small town called Knoxville, AR.  He has a bachelor's degree in Mathematics and recently moved to Fayetteville.  Joseph spends most of his free time playing music, riding his bike, and exploring the area!  Joseph dislikes firm pillows and loves smoothies.  He believes math is one of the most important tools in your toolbox, so don't lose it!

Favorite Number: 8

Favorite Math Joke: 3.14% of sailors are PI-rates

I love Mathnasium because..... it is exciting to watch kids understand math and actually have fun at the same time!

 Katie Bartelt, Owner


Katie holds a BA and a Masters from the University of Arkansas.  After getting her masters, Katie pursued a career in teaching and was a math teacher at Bentonville High School for five years and taught Algebra II and IB Math Studies.  Katie has always loved math and has a passion to make math understandable to those around her.  She has always loved tutoring students inside and outside of school and helping them to understand and love math.  Katie and her husband Nick have two young sons.  Katie loves spending extra time reading, playing sports, and any activities with her husband and two sons.

Favorite Number:  11, because I have always liked odd numbers.

Be rational get real cartoon pi


Favorite Math Joke: 

 I love Mathnasium because..... the curriculum builds a true understanding of math and numbers and helps students be successful and have fun with math.

Fun Fact: Katie loves watching and playing sports and is a big Razorback fan!  Go Hogs!




MartinekLarry Martinek, Creator of the Mathnasium Method

Larry Martinek, Chief Instructional Officer, Developer of Mathnasium Program. 

Larry has spent his entire career finding a better way to teach math. From inner city to public schools, to acclaimed magnet schools, to leading private and parochial schools, Larry has served as both a classroom teacher and as an educational consultant. He has designed curriculum, teaching strategies, and teaching materials designed to help students and teachers learn math more effectively. He has trained teachers in the art and science of boosting students' ability to “do” math, thereby increasing students' math scores and feeling of self-worth. Larry is the developer of Mathnasium’s educational program – one of the most comprehensive and innovative curriculas ever produced for teaching math.

While Larry is not an Instructor at our Center, he is a valuable asset we can call on to ask about specific students' scenarios for guidance and advice. This has helped to make visits more productive and enjoyable for many of our students. 



Royal Hart, Instructor

Royal grew up in Lowell, AR and has graduated from Rogers Hgih School.  She is currently working on her Industrial Engineering bachelor's degree at the University of Arkansas.  She currently lives in Fayetteville with  her husband and four cats, Theodore, Eleanor, Eisenhower, and Winston.  Royal is not hesitant to claim being a crazy cat lady!  Her parents teach math and science so she likes using the teaching skills she has learned from them at Mathnasium.

Favorite Number: 2

Favorite Math Joke: Q:  Why does the math teacher love the forest?

                                           A: Because of all the natural logs!


Fun Fact:  ​I am really good at sewing.  I help make my friends' halloween costumes and clothing for myself.

I love Mathnasium because..... it has a unique and effective way of teaching kids math.



Darby Campbell, Instructor


Darby is a senior pursuing a BA in Mathematics at the University of Arkansas.  She has minors in Business and Political Science.  After graduation in May, Darby wants to get a Masters of Science in Business Analytics.  Darby has always enjoyed math.  She loves how every math problem is like a puzzle you have to piece together.  In Darby's spare time she loves reading, doing puzzles, watching Netflix, and spending time with her family and friends.

Favorite Number:  15, because she was born on the 15th.  

Favorite Math Joke: Q:  How do you make seven and even number?

A:  Take the "s" out.

 I love Mathnasium because..... I love it when students I've worked with for months finally grasp a difficult concept or tell me they have an A in math.  Getting to know each student is one of my favorite things about Mathnasium.

Fun Fact: Darby reads a new book about every two weeks.


Anna Davis, Instructor


Anna is studying biomedical engineering at the University of Arkansas.  Anna enjoys math and helping others better understand the subjet.  She first started tutoring high school students that were preparing for the ACT.  Anna has a dog named Bandit.  In her free time, she enjoys painting and drawing.

Favorite Number:  3  

Favorite Math Joke: Q:  Why is the obtuse triangle upset?

A:  Because it is never right.

 I love Mathnasium because..... it focuses more on where the student is currently versus where the student should be.  Its curriculum is personally tailored to each student, which really benefits them.

Favorite Number:  I love to Snowboard!