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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!



April Nicholson, Center Director

April graduated from Crowder College with a degree in Mathematics, and Missouri Southern State University with a degree in Environmental Health. She has more than 15 years of experience tutoring high school and college students in math, from algebra to calculus. April believes that math doesn't have to be as difficult as some make it. She explains complex math problems in words that are easy to understand, and can easily adapt to any students' learning style. 

Favorite Number: 37

Favorite Math Joke:


I love Mathnasium because..... we make math fun and easy to understand.




 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. 


Aaron Smiley, Instructor


Aaron is  a physics and mathematics student at the University of Arkansas.  He has always deeply enjoyed doing math and finds it very fascinating.  He enjoys helping students see and appreciate math the same way he does.  In his free time, he enjoys reading and spending time with friends and family.  

Favorite Number: -1

I love Mathnasium because..... I get the opportunity to show kids how useful and effective math can be.

Fun Fact: I can play the saxophone.




 Paul Farmer, Instructor

  Paul has lived in Bentonville since he moved from Kansas nearly ten years ago.  He attends Bentonville High School and plays the tenor saxophone in the school marching band.  Paul enjoys cooking and trying new things.  He hopes to one day become an aerospace engineer.

Favorite Number: 42

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

                                      A: Just get rid of the 's'!

In five years I will be..... earning an aerospace engineering degree.

I love Mathnasium because..... it gives kids the opportunity to become confident in their math skills.


​Kristen North, Instructor

Kristen moved to Bentonville in the 8th grade.  She is currently a senior at Bentonville High School and plays the baritone saxophone in the Pride marching band.  After high school, Kristen will attend Hendrix College in Conway, AR to pursue a degree in biochemistry/molecular biology with a minor in neuroscience!  Her favorite thing is to spend time with her 3 year old niece, Kinsley, and her border collie, Karmen.

Favorite Number: 97, because it is the biggest prime number under 100.

Favorite Math Joke: 86% of all statistics are made up.

I love Mathnasium because.... I love working with kids, and being able to teach them my favorite subject is a plus!​

Fun Fact: I have four older sisters and one older brother!


 Cassie Reed, Assistant Center Director

  Cassie grew up in Farmington, AR.  She has a bachelor's degree in Biomedical Engineering and really enjoys reading and listening to the soundtracks of musicals.  One day, she plans to own a dog named Bark Rurffalo for no reason other than the pun in the name.  She believes math is one on the only things that can be applied everywhere and antwhere, which makes it very important.

Favorite Number: 11 because of its parallel lines and being sisters jersey number.

Favorite Math Joke: Q: Every one knows that 7 ate 9, but do you know why?

 A: Because you're supposed to eat 3 squared meals a day!

Fun Fact: I am left-handed and can write upside down.

I love Mathnasium because..... it blends math and games, making it twice as great!




 Howard Moyes, Instructor


  Howard has a BA in German from Davidson College and a Masters in International Economics from Brandeis University.  He moved to Bentonville three years ago after spending most of his life in Texxas.  After a 25 year career in international tax and consulting, Howard recently left the corporate world to pursue a career in teaching.  His ultimate goal is to teach either junior high or high school math.  Outside of work, Howard and his wife are busy with their two teenage sons.  He also enjoys growing roses, ballroom dancing, and running marathons.

Favorite Number: 18

Favorite Math Joke: Math illiteracy affects 8 out of every 5 people.

Fun Fact: Howard is trying to run a marathon in all 50 states.  By the end of 2017, he had checked 20 states off the list and plans to run five or six more each year until he finishes.

I love Mathnasium because..... I have always loved math, and it drives me crzy when I hear students say they "can't do math."  Mathnasium gives me a chance to work closely with students to help them learn to love or at least like math, too.


Melissa Salvador, Instructor

 Melissa was born in El Salvador.  She lived there for 13 years and 4 years  ago she moved to Bentonville, AR.  Melissa is currently a junior at  Bentonville High School.  She wants to go to the University of Notre Dame  to studey medicine.  She loves to read and play the piano.  She enjoys  learning math and believes that  even though it can seem hard, math is a  really useful tool!

 Favorite Number: 28

 Favorite Math Joke: Q: Who came up with the round table?

                                      A: Sir Cumference

 Fun Fact: I can speak Spanish, English, and a little bit of French.

 I love Mathnasium because..... it is amazing to see the kids learn math  really easily and they learn to love it!


  Miyu Sorenson, Instructor

 Miyu is from Japan and currently attends Bentonville High School.  She  wants to major in international business in college and travel around the  world someday.  She loves children and enjoys music very much.

 Favorite Number: 7, it's my lucky number

 Favorite Math Joke: Parallel lines have so much in common, it's a shame  that they'll never meet.

 Fun Fact: I used to work at a movie theater.

 I love Mathnasium because..... I love helping others and I love that I  get to use my knowledge to help children become better at math.






  Michelle Barnes, Instructor

Michelle is a senior at BHS.  Originally from Neosho, Missouri, she has lived in Bentonville for 5 years.  She spends most of her free time reading or writing, and she hopes to go to college to major in English and minor in applied Mathematics.  In addition to literature, she also enjoys music, color guard, and the French language.

Favorite Number: 17

Favorite Math Joke: ​What happened to the plant in math class?  It grew square roots.

Fun Fact: Michelle has been on the varsity/open class winterguard at BHS since she joined the guard in 2015.

I love Mathnasium because..... because I love math, and I really enjoy helping people undestand things, both math related and non-math related.  Mathnasium helps me help others with something that I've always enjoyed!


 Sandra Gonzalez, Instructor

Sandra is currently a junior at the University of Arkansas, majoring in social work.  She plans to pursue a Masters in Social Work.  She loves children and hopes to work in the NICU and with children.  After getting her masters, she wants to travel the world and especially visit Iceland and Norway.  In her spare time, she loves learning more by reading and watching documentaries.  She has a 7 year old German Shepherd named Coco, who she loves hiking, playing, and cuddling with.

 Favorite Number: 5

 Favorite Math Joke:  Q:  Why was 6 afraid of 7?

                                             A:  Because 7 "ate" 9.

 Fun Fact: Sandra is the youngest of three siblings.  She has an older brother and sister.

 I love Mathnasium because..... it is a fun but hardworking environment where students can have fun while learning math and understand it.


 Christy North, Instructor

Christy is a graduate of the University of Arkansas.  She has spent the last 15 years homeschooling her two sons and the last 5 years teaching science labs to elementary through high school students.  When she can find the time, Christy loves to curl up with a a good mystery.  

Favorite Number: 9, because of all the patterns

Favorite Math Joke: Q: How many guacs are there in a bowl of guacamole?

A: Avocado's number

Fun Fact: Christy enjoys gardening and hanging out with her chickens.

I love Mathnasium because..... it helps to take the mystery out of math, and loves the cake method!