Our staff is built to teach each student individually, to develop the skills they need to thrive in mathematics, and to foster a love of learning.

Jennifer Speer


Jennifer has a unique perspective that allows her to understand your kids and help them.

She is a successful business owner and homeschooling mom of 3! She has the perspective of an educator as well as a busy parent and knows the challenges of both. Jennifer knows how to engage the kids and hold their interest. She keeps them progressing in math in a way they will actually enjoy!

Jennifer has always had a strong grip on Mathematics, earning her B.B.A in Finance at Southwest Texas State University and then owning and operating a successful business for over 10 years in the Brazos Valley alongside her husband James.

After finding Mathnasium and seeing what it can offer kids, they made a tough decision to sell their successful business with its comfortable lifestyle and start all over again. As scary as that sounds, they knew that parents in the Brazos Valley wanted the best for their children at an affordable price. There was already so much available for the many college students in Bryan/College Station, but not for elementary, middle, and high school students. Now, after being open for several years and expanding to multiple locations, we have hundreds of amazing success stories as a result of our passionate instructors, inspiring learning environment, teaching style and curriculum at Mathnasium! Let us help your student! 

Favorite Math Joke: There are 3 kinds of people in this world... Those who can count, and those who can't.

Fun Fact: Graduated college in 3 1/2 years with a 4.0!

I love Mathnasium because: I get to be a part of a great organization that changes kids' lives! Who wouldn't want to be a part of that?!?

Larry Martinek

Creator of the Mathnasium Method
Larry has spent his entire career finding a better way to teach math. From inner city 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 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.

Lindi Barrera

Lead Instructor

Lindi was born in Waco, Texas and then moved to Florida where she spent part of her childhood enjoying the beach. Then she moved back to Waco where she started kindergarten at China Spring. Lindi has now been there for going on 12 years and is currently a high schooler. At China Spring she joined the dance team, having a background in competitive dance, and performed at the Dallas Cowboys Stadium. She also plays the piano to nurture her love for music. Lindi’s favorite artist is Lana del rey­ countless hours in 2022 were spent listening to Lana. She loves traveling and after several trips to New York City she is determined to live there when she gets older.

Favorite number: 2, because, without fail, whenever I was in elementary school and we were arranged alphabetically I was always second in line. Now, the number is like a good luck charm.

Favorite math joke: Why was 6 afraid of 7? Because 7, 8, 9 :0

In five years, I will be: In a big city, hopefully NYC, enjoying my college years.

I love Mathnasium because: I love math and have always felt confident in it. However, I have friends that are not as comfortable with math and I love helping them out and being able to help out students feel confident in math and learn to love it inspires me too.

Kassidy Robinson

Lead Instructor

Kassidy is currently a junior at Lorena High School and loves learning. She enjoys anything in the arts, playing French horn and piano, and attending any musicals/plays in the area. She enjoys being outside with her dogs, hiking, hammocking, or picnicking when the weather is nice. Learning has always been a passion of hers and she loves to read, cook, or bake new things in her free time.

Favorite number: 12, it contains the first and second best numbers!

Favorite math joke: What are ten things you can always count on? Your Fingers!

In five years, I will be: Finishing up my undergrad degree in biology or biochem, taking the MCAT, and applying to med schools to become a trauma or cardiovascular surgeon!

I love Mathnasium because: They help students who may be struggling and encourage them to grow in their math skills and confidence. They are helping everyone learn to love and appreciate math!

Eddie Williams


The Team Player Award, Spring 2021

Eddie (Ed) started out as a small lad in Farmers Branch (North Dallas), Texas. He graduated from R.L. Turner High School (Carrollton, TX) and North Texas State University (now UNT) with a B.S. in Math Education and M.Ed. in Education Administration. This was a few years ago! Ed has experience as a high school and junior high math teacher and as a campus principal. He also has worked as a junior college math instructor, accountant, and an administrator for two different non-profit Christian agencies in the Fort Worth area. Ed has always loved math and feels like it is a basic part of most everything!

Favorite Number: 7, because theologically it represents completeness.

Favorite Math Joke: Why didn't the teacher draw a circle? He said he would when he got around to it.

In five years, I will be: Still tutoring at Mathnasium, helping students to reach their goals and potential.

I love Mathnasium because: Mathnasium gives students a simpler way to look at math and see its beauty. Math is made easy with a different approach and from a different perspective. Math is not something to fear!!!

Lauren Sincerney


The Team Player Award, Fall 2021

Instructor of the Semester Finalist, Spring 2022

Lauren is a student at Midway High School in Waco. She has lived in Waco her entire life with her parents, sister, and six pets. She is working to become a teacher to help kids learn and have fun while doing it. She also loves singing in her choir and spends most nights with her nose stuck in a book.

Favorite Number: 13, because it is the same number as my birthday.

Favorite Math Joke: How do you make seven an even number? Remove the “S”!

In five years, I will be: Working towards my degree in education at the college I choose.

I love Mathnasium because: I have always loved math and I think it's great that Mathnasium helps other kids be able to complete and understand their math education. I believe that math is a vital skill that everyone needs to learn and I am grateful that I am able to help kids through Mathnasium.

Julian Kanchanamongkol


Julian lived in California until he was 15 years old when his family moved to Waco, TX. He is currently a junior attending Bishop Louis Reicher Catholic School. In his spare time he enjoys playing with his dog, Mocha, spending time with family, and traveling.

Favorite number: Zero because it’s unique in the way that it is neither negative nor positive.

Favorite math joke: What do you get when you bake 3.1415 blueberries? Blueberry pi!

In five years, I will be: Finishing up the last year of college.

I love Mathnasium because: It is a friendly environment where kids can gain confidence in their math skills and even have fun doing it.

Miriam Carl


Miriam has lived in Waco her whole life, and is about to begin her junior year of high school at Live Oak. She has 5 younger siblings and loves spending time with her wild family. She plays basketball for her school, and runs cross country and track. Most days she can be found reading, binge watching Netflix, or shamelessly blasting Taylor Swift.

Favorite number: 3, because I would consistently be the third kid in line alphabetically at school. I also love the Rule of Thirds, which essentially says that images are more pleasing when the main focus falls on a third of the canvas.

Favorite math joke: What did the acorn say when it grew up? Ge­om­e­try! (Gee, I’m a tree!)

In five years, I will be: Hopefully I will be in my last year of college, preparing for graduation and applying to medical schools!

I love Mathnasium because: Math is so so important and helping kids understand it is one of the most fulfilling things you can do. Mathnasium offers a unique and effective perspective on teaching math, while consistently putting the kids first.

Isabella Benson


Isabella graduated from Midway High School. She is currently attending Baylor University and majoring in economics with minors in math and legal reasoning and analysis. Isabella loves spending her free time drawing, reading, and spending time with family.

Favorite number: 5, because it marks the birthday of my twin and me.

Favorite math joke: Why doesn’t anybody talk to circles? Because there’s no point.

In five years, I will be: Hopefully attending graduate school.

I love Mathnasium because: During my middle and high school years, I attended Mathnasium and had an incredibly beneficial experience. The strong sense of community there made me love being a part of it. I have a passion for helping and teaching others, and now I aspire to provide someone else with the same positive experience that I had during my time at Mathnasium.

Rachel Bigler


Rachel is a senior at Baylor University, where she is studying Child and Family Studies and Leadership Studies with the hope of becoming a counselor for adolescents and young adults. She is originally from Lone Tree, Colorado, and loves hiking, singing, and playing with Gus, her 1.5 year ­old Great Dane. She is also a triplet, pictured here with her sister Claire (right) and brother John.

Favorite number: 7, because this was my mom's jersey number when she played volleyball in high school and college, and I carried on the tradition when I played in high school and club.

Favorite math joke: Did you hear the one about the statistician? Probably.

In five years, I will be: Completing certification to be a LCSW and taking care of my own little Labrador!

I love Mathnasium because: Math is so beautiful and fun when it is taught in an environment free from shame and fear, and that is the kind of environment that Mathnasium provides! Since tutoring in high school, I've always wanted to come back to it and I'm grateful that Mathnasium provides me the opportunity to do what I love.

Rachel Davenport


Rachel is currently attending Midway High School as a Junior. She has plans to major in finance and economics in the future. She runs Cross Country and Track, and is a member of her school’s Student Council, Art club and Medical club. She loves spending time with her two bunnies and betta fish, as well as running and drawing.

Favorite number: 5. Because it’s the most even odd number there is, and there’s five people in my family (including myself!)

Favorite math joke: Student 1: I saw my math teacher with a piece of graph paper yesterday. Student 2: She must be plotting something.

In five years, I will be: At university, getting a masters in business and finance.

I love Mathnasium because: It’s a great way to help students learn how to do math. I help a lot of my friends with figuring out math problems, and I love the moment when people realize that they know the answer and gain confidence in themselves.

Kaelyn Parker


Kaelyn Parker is a junior majoring in biology/pre­med at Baylor university. She has experience up to calculus and experience with young children. Don’t hesitate to reach out if you have any questions!

Favorite number: 3. I like the rule that, if any numbers integers add up to being divisible by 3, you can reduce with it. For example, 72 is divisible by 3 as 7+2=9.

Favorite math joke: Algebra needs to stop asking me for their x… she’s not coming back!

In five years, I will be: In medical school! Yay :)

I love Mathnasium because: I adore being able to help kids. Furthermore, it works my brain and gives me a challenge everyday. It’s a very interesting job!

Andrea Chacon Rojas


Andy is a biology major at Baylor University. She likes to read recreationally, hang out with her friends, and try new things.

Favorite number: 7, because someone needs to like the number 7.

Favorite math joke: Why was 9 afraid of 7? Because 7 eight (ate) 9.

In five years, I will be: In medical school.

I love Mathnasium because: It allows the kids to find love for math through different methods of learning.

Our Mathnasium Mission

Teach children math so they understand it, master it, and love it. Math can change their lives, and they can change the world.

What I love about Mathnasium is the ability to teach problem-solving skills and make math make sense, while also making a student smile.
Amber W., Mathnasium Instructor

Schedule Your Math Skills Assessment Today

Want to join the Mathnasium team?

Are you interested in changing lives through math? We're looking for outstanding individuals with a high level of commitment who are passionate about teaching math. Find out if there's a Mathnasium position that's just right for you!

Explore Employment Opportunities