Mathnasium 7735 West Long Dr, #2, Littleton CO 80123 (303) 979-9077

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We look forward to serving you! Sessions are 60 minutes in length.

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:



Suzie Shride, Center Director 

Hello! I am the Center Director at Mathnasium of Littleton. I am a retired classroom teacher with a Masters Degree in Education and I am Master Certified through Mathnasium University. I have more than 3500 hours of training in the Mathnasium Method. I know first-hand the Mathnasium Method works because 10 years ago my daughter went from hating math and declaring she "just didn't have a math brain" to math being her best academic subject in high school and her saying, emphatically, "Mom! I don’t need help with math! I am good at math!" Her 100% scores on math tests proved her right! 

I am in the process of writing about my more than 20 years of world-wide climbing and outdoor adventures in an award-winning Young Adult series, Lucy Dakota: Adventures of a Modern Explorer. My debut novel, Rocky Mountain Beginnings  won the Colorado Book Award for best YA novel in 2011.  The second book in the series, Journey to Nepal, is in the works. In July 2014 I hiked 96 miles along the West Highland Way in Scotland with my sister, Allison. It was on that trip that the idea for us to partner on a Mathnasium center in Littleton was born.

I am one of those kids who had to work at math in high school and college, and despite earning straight A's, I was a finger counter. I understand the pressure kids face to succeed at math. My wish is for every child who comes to our center to reach a point where math makes sense to them and I promise to give every student that passes through our doors the foundation they need to understand math! Who knows? They might even become crazy about math!

Fun Fact: I have climbed to the base camp of the world's highest and fifth highest mountains - Everest & Makalu and have hiked and climbed around the world!

Hobbies: Hiking, gardening, travel, animals

Favorite Number: 18 - it's my birthday and has always been my lucky number. In numerology it also has special meaning to me as it adds to 9 which is my favorite number in mathematics.


Larry 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 conducts many of the training sessions our instructors and center director attend, hosts special math afternoons at our annual Mathnasium convention and is a valuable asset we can call on to ask about specific students' scenarios for guidance and advice. This has helped to make sessions more productive and enjoyable for many of our students. 

The AMAZING team of instructors at Mathnasium of Littleton!



Zach Aparicio, Center Manager

Hello, my name is Zachary and I am a graduate student at the Colorado School of Mines. I have been an instructor at Mathnasium of Littleton for 6 years, all the way back to when I was just 15! I'm currently pursuing a degree in Data Science, after finishing up a Bachelors Degree in Statistics. Besides my passionate love for mathematics & teaching the subject, I enjoy many things. Throughout the year, I enjoy playing Ultimate Frisbee through the club team at Mines and being in different leagues and pickup games throughout the summer. In addition, I love to travel, whether it be to Europe, Mexico, Washington D.C., Moab or Glenwood Springs. I traveled to Mexico five years ago to help with a Habitat for Humanity project through my Spanish class at school. In my free time, I enjoy solving logic puzzles, like Sudokus or one of my Rubik's Cubes. I also enjoy challenging myself at a plethora of Math Competitions. I've always loved working with kids and have always enjoyed math so sharing my knowledge with students at Mathnasium is a perfect fit.

Favorite Number:  My favorite number is 1729. There was a man named Srinivasa Ramanujan who was a famous mathematician in the early 20th century. Despite growing up in India and having very limited access to the mathematical knowledge of the time, he taught himself and was sought out by English mathematicians for his work in all fields of math. A colleague and friend of his, G.H. Hardy, visited Srinivasa in the hospital and mentioned that his taxicab number, 1729, was an unusually dull number. Srinivasa remarked that in fact, it was not. 1729 is the smallest number that can be written as the sum of two cubes in two different ways, 10^3+9^3 and 12^3+1^3. Nowadays, 1729 is known as a taxicab number for this exact reason. Additionally, the sum of the digits, 19, times its reverse, 91, gives you back 1729. These types of interesting facts that you can find for every number show the true beauty in mathematics.

Favorite Math Joke: Why do mathematicians always get Christmas and Halloween confused? Because Oct 31 = Dec 25. In base 8 (Oct), the number 31 is the same as the number 25 in base 10 (Dec or Decimal).

Fun Fact: People at school and in the Ultimate Frisbee community call me Steve due to the fact that there were two people named Zach on our high school frisbee team. I received the name Steve and the nickname has stuck ever since.

What is your dream? Living in Spain with an enjoyable career and becoming fluent in Spanish.


Reyna Felipa, Center Manager

Hi, my name is Reyna! I have worked at Mathnasium for 5 years and I love working with our younger students. I'm a senior at CSU and I am currently majoring in Human Development and Family Studies. My passion has always been working with children which is why I love working at Mathnasium and why I have decided to become an elementary school teacher after college. I may not be an engineer or mathematician but I will always be there to care for your children and help them learn and grow!

Favorite Number:  7 or 9 but I have no idea why! They have just been my favorite numbers since I was a kid.

In 5 years I will be . . . . working as a kindergarten teacher

Favorite Place to Travel: Greece because it was warm and the ocean was so blue






Michael Tucker, Center Manager/Lead instructor

Hello, my name is Michael. I am a graduate of the University of Colorado in Colorado Springs with a bachelors in mathematics. I have been a college tutor and have worked in an elementary school for five years. I have worked at Mathnasium for 3 years now. I wanted to work at Mathnasium because I enjoy helping people out with concepts and topics that are causing them stress or difficulty. The atmosphere and the vibe Mathnasium gave off was fun and inviting, so naturally I wanted to be a part of the team. I also enjoy working and interacting with kids. I remember tutoring and holding study sessions for a majority of my college algebra class. The experience was fun, plus it was a good feeling to be able to help my fellow classmates not be super stressed out about math. The teacher noticed I was doing these things and after the class was finished, helped me get a job as a tutor at the school's learning center. I hope to use my talents and personality in order to help students be the best they can be. In addition, I want to help them build confidence, not only in math, but in their everyday life as well.


Favorite Number and Why: ​18 because it's cool (and it's my birthday)

Favorite Math Joke: Are monsters good at math? Not unless you Count Dracula.

In 5 years I will be . . . . teaching math.

Fun Fact: I used to play video games competitively.

Matt Peters, Lead Instructor

Hello, I’m Matt Peters! I received my bachelor’s degree in geophysics from Colorado School of Mines, and finished my master’s degree in computer science last year. My minor was in mathematics, so I’ve got a passion for the subject. After working at Mathnasium for two years, I have decided to pursue a career as a high school math teacher and have started the process of getting credentialed to do that! This fall I will be teaching 6th grade math at Stuart Middle School!

Favorite Math Topic: My favorite math topic is complex numbers. Once long ago, we could only think of positive integers, like 1, 2, 3… At one point, someone decided to make nothing a number, and called it 0. At another point, it was discovered that there were numbers between numbers, and called them fractions. Eventually we made the concept of numbers less than nothing, and called them negative numbers. Essentially, as time went on and knowledge evolved, we kept finding utility in expanding our numeric system. Eventually, one of the most abstract discoveries was made with i, also known as the square root of negative one, or imaginary numbers. It doesn’t seem to make sense, and yet it does because the math works out! We discovered that numbers can have both real and imaginary components. That’s what complex numbers are.

Fun Fact:  I LOVE problem solving. Every day I look forward to a new coding challenge, whether it’s writing a program to efficiently traverse a binary tree to get the information I want, or figuring out how many times a word needs to be split such that there are at most 4 unique characters. One of the most important things I’ve discovered about myself is that if I don’t embrace challenge, I’m a very bored man.

Hobbies: Long-distance running and healthy eating. Also, playing difficult single-player video games! I love trying something new, failing, figuring out what I did wrong and could do better, then implementing a better course of action. Self-improvement is fun!


Helen Blake, Instructor  


Hello! I’m Helen and I’m a senior at Colorado Academy. My sister went to Mathnasium a few years back, so the summer before my junior year, I decided to look into tutoring here. Everyone is so positive and passionate about math at Mathnasium, and I knew that I would love the atmosphere. I used to hate math a lot, but my math teachers in middle school helped me and pushed me, and with time I grew to enjoy it. Since then, I have absolutely fallen in love with math. With my passion for math, I hope to go into genetics and work as a genetic counselor or cellular biologist.

What is your favorite number and why? My favorite number is 13! I am not really sure why thirteen in particular is my favorite, but I have always had a love for prime numbers.

What is your favorite math joke? How do you stay warm in a cold room? You go to the corner because it is always 90 degrees!

Fun fact: I grew up in a military family, so I moved around quite a bit when I was younger. I’ve been to ten schools, lived in five states, and moved six times. My family decided to settle in Colorado, so this is the longest I’ve ever lived in a place (five years!)


Hobbies: I love reading and writing, and I play tennis and field hockey. My favorite books are The Book of Two Ways by Jodi Picoult and Pretty Things by Janelle Brown.



Emma Carpenter, Instructor 

Hello! My name is Emma Carpenter and I am a sophomore at Colorado Academy. I came to work at Mathnasium because math has always been a subject I enjoy and I also really love working with kids. The community at Mathnasium is so welcoming and everyone is so enthusiastic about math. My favorite math experience was my ninth grade math class. My teacher’s teaching style was to give us problems and push us to struggle our way through them as a class. The first few classes with him I would get really frustrated because I was used to learning linearly from a textbook. However, this style of teaching soon taught me that there is no specific way to solve a problem, rather it’s all about the process and the tools that you choose to use to solve a problem. I play soccer and swim for CA and I love to draw, bake and do just about anything outdoors! In the future, I’m not sure what I want to study in college but I know that I want to pursue something in the STEM field. I am excited to be a part of Mathnasium!


Favorite Number?  My favorite number is number 2 because it is the first prime number and the only even prime number.


Favorite Math Joke? I saw my math teacher with a piece of graph paper yesterday...I think he must be plotting something.


Fun Fact: I love to telemark ski in my free time.


Why did you decide to work at Mathnasium of Littleton? I learned about Mathnasium through one of my sister’s friends and it sounded really fun. Math has always been one of my favorite subjects so I wanted the opportunity to share my love and enthusiasm for math with other students.

Robby Ziemian, Instructor 

Hello! I’m Robby Ziemian and I am a sophomore at D’Evelyn High School. I’ve always been that kid, the one who can entertain himself by graphing random equations on his calculator. When I saw the opportunity to work at Mathnasium, I jumped at it because it was a job where I could do something I actually liked. In my free time, I enjoy playing basketball and soccer and reading sci-fi books (Dune is one of my favorites). Why did I come to work at Mathnasium? For me, math is not just a stepping stone that I can use to do other things, it’s something that is important by itself, if just for the reason that it organizes our thinking. I am a big believer in logic, so math really appeals to me. 


Favorite Number: Six is my favorite number because it is the first perfect number (a perfect number is the same as the sum of its divisors), and it is two threes, which is another number I like. 


Fun Fact: I am the third Robert Ziemian in my family, since both my dad and grandpa had that same name. 


Favorite Math Topic: Prime numbers, because once you get into the thousands, or even millions, it seems impossible that there are still numbers that cannot be divided by anything. There are all sorts of cool ways to find new, large prime numbers, such as Mersenne primes (2^x - 1) and factorial primes (x! +/- 1).

Corrianna Campbell, Instructor 

Hello, my name is Corrianna. I am a junior studying chemistry at Colorado School of Mines. Growing up, I wasn’t really sure what I wanted to study because I had a lot of interests, including playing the violin, literature, art, and of course, math and science. In high school, I found that I was interested in chemistry, and part of the reason for that was because it is an applied science that has its foundation in math. Math provides elegant explanations for why matter behaves in a certain way. It is beautiful because it is both universal and specific. When I work with chemistry, I use math to explain my results and explain why atoms and molecules behave the way they do. I am very excited about working for Mathnasium because I love explaining math and I enjoy working with children. Prior to working for Mathnasium, I taught violin lessons and had the opportunity to teach English as a second language to children in Chengdu, China. I believe that developing strong math skills early helps kids feel confident and excited about problem solving, and so I am passionate about helping kids learn math!

What is your favorite number: My favorite number is 29. I like it because it is a prime number, plus it is my birthday.

Favorite Math Topic: I love algebra because it reminds me of problem solving in chemistry. Solving for unknowns using a logical and systematic approach is fun!


Hobbies: Playing violin, hiking and reading.


Fun Fact: I have hiked to the top of Pikes Peak!


Andrew Clancy, Instructor 

Hi! My name is Andrew. Math was always one of my favorite subjects growing up, but I definitely struggled to stay up to speed when I started learning Algebra and Geometry. I started taking online classes, which was difficult as a kid with attention issues. However I lucked out with my teacher, Mr. Mabbott, an exceptionally patient man who helped make Geometry my favorite subject at the time. I have a Bachelor's in Communications Media, and spend most of my time improving my visual art and graphic design skills; it's a personal goal to post a minimum of one art piece a day online. When I'm not teaching or making art, I try to take advantage of Colorado's great hiking opportunities. 

Favorite Number: My favorite is 12. It is the number of donuts I'm liable to consume if left unattended.

Favorite Math Joke: There are 10 types of people; those who understand binary, and those who do not.

Hobbies: I enjoy reading, creating table-top, role-playing games and watching documentaries with my documentary club. I strongly recommend the book "The Boy Crisis: Why Our Boys Are Struggling and What We Can Do About It" and the documentary "Waiting for Superman."

What are your dreams? I hope to someday support myself entirely off my art and writing, and to live abroad for at least a year while I'm still in my twenties, preferably in Germany or Austria. 

Seth Patrick, Instructor 

Hello! My name is Seth. I’m a graduate of Wright State University in Dayton, Ohio where I received a B.S. in Biology, and American Public University where I received an M.S. in Environmental Science. I’ve chosen to work at Mathnasium to pass on a passion for math and to help explain to students how it relates to their lives. I previously worked as a public school teacher, and enjoy working with kids. Math doesn’t have to be hard, and it absolutely does not need to be daunting - it’s all about the approach. 

Favorite Number:  The number 1 is my favorite number, because it is the loneliest number and could use the support.

Favorite Math Joke: Did you know that there are three kinds of people in the world? Here they are: people who can count and people who can’t. Haha! That's the same joke Matthew chose! Who'd have thunk?!

In 5 years I will be . . . . teaching math or science.

Fun Fact: I’ve ridden the three tallest and fastest roller coasters in the US.


Helen Zhu, Instructor 

Hi! I’m Helen Zhu, and I am a sophomore at D’Evelyn Junior/Senior High School. Ever since I was little, I have always loved helping others, whether that be helping them better understand various concepts or even just helping them with a simple favor. I especially enjoy helping others with topics such as mathematics or science, so I found Mathnasium to be a perfect fit for me. I love how Mathnasium has a very welcoming atmosphere and how enthusiastic everyone is. Up until high school, I have always just followed the formulas when it came to math, so I always knew how to get the end result with the formulas, but I sometimes didn’t truly understand the reasoning behind the formula or why exactly a result ended up to be what it was. Once I got into high school, my math teachers explained the reasoning behind all of the formulas, and everything just clicked for me. This sparked a deeper passion for math in me, and I have been amazed by all of its interesting inner workings ever since, so I am looking forward to helping kids feel more confident in their journey with math, and maybe even spark this passion in them too.

Favorite Number: My favorite number is 24 because it’s my birthday! Also, it’s just very satisfying to me for some reason. 

Favorite Math Joke:  Why should you stand in a corner to stay warm? Because it’s always 90 degrees!

Hobbies: I love reading, skiing, playing tennis, and spending time with my friends and family. Also, I enjoy playing the piano, violin, and playing the flute in the D’Evelyn marching band. I also recently started playing the oboe, and I am loving it so far.

Favorite Math Topic: I really like algebra. Solving for the value of an unknown variable is very satisfying to me because of all of the logic behind it.

Ethan Kopec,  Lead Instructor 

I'm Ethan! I am a sophomore attending Benedictine College in Atchison Kansas. Currently, I am studying abroad in Spain and will return to work at Mathnasium in May. I came to work at Mathnasium because a friend recommended it. The center has a great atmosphere and I love helping so many kids realize how great math can be! One of my elementary school teachers was very intense, and he somehow convinced me to stay in during lunch recess to practice math. Looking back, it's amazing what people will do with the right inspiration! I work in center when I am back home and online when I am at school!

Favorite Number: My favorite number is 5 because it works so well in math.

Math Joke:  7/5 of people have problems with fractions.

Favorite Math Topic:  I love Algebra because it is always balanced and you can do so many different things to get the answer.

Danika Smith, Instructor

Welcome to our newest instructor - Danika!

Hi! My name is Danika and I’m a junior at Columbine High School. I have been helping my peers with Math for years, and saw an amazing opportunity to continue that at Mathnasium. I love seeing kids' eyes light up when something finally makes sense. I’ve always enjoyed math because it's like a puzzle; constantly growing and building on itself. Where we can take components like integers and work with them to solve the puzzles that equations and formulas have built for us. I intend to follow my passions in math and sciences to pursue a career in Forensic Entomology.


Hobbies: In my free time I enjoy painting, reading, listening to podcasts, and learning new things. I love analyzing all sorts of media because of the constant illusions present in all art forms as well as learning more about folklore, and all types of bugs.


Favorite Number: My favorite number 10, it was the number on my Basketball jersey when I was younger, I also find the way that 10 interacts with other numbers fascinating in general.

Favorite Math Joke: How does a mathematician plow fields? With a pro-tractor.

Fun Fact: My favorite rock is Malachite 

Matt Van Loon, Instructor

Hi! I'm Matt III (the third because I am the third Matt to work at Mathnasium of Littleton). I am a graduate of Texas A&M with a degree in psychology and a minor in neuroscience although I was originally on an engineering, stem-focused trajectory. I am very thankful for how my mind works and attribute a lot of it to my fluency in math. If my sister hadn't taught me math for fun when we were kids, I'm not sure it would have come so easily to me in school or if I would have enjoyed it as much. She proved to me that one tutor/teacher can make a difference.

Favorite Number: My favorite number is zero because it is nothing and something at the same time.

Hobbies: Playing tennis and disc golf, walking my dog Beth, going on hikes, meditation, working out, oh and, videogames.

Favorite Math Topic:  Calculus. Transforming an equation to find its derivation/integral and learn more about that equation is fun to me.



Rich Stark, Instructor

Hello, my name is Rich Stark and I grew up on Long Island, New York. I graduated from Saint Joseph's College with BA in Mathematics/Secondary Education. I have been teaching middle school math since 2020 and look forward to becoming a Math director at a school n the near future. I joined Mathnasium because one of my students has been going to Mathnasium and with my instruction at school she's been the top student I have in 6th grade. It showed me that Mathnasium works and by joining the team, then maybe together, we can get as many students to succeed as possible! I have an older sister who teaches science and also works in a science lab. I love all that is football and I am a huge Indianapolis Colts fan. I enjoy playing fantasy sports online with my friends and I am extremely competitive because I don't like to lose. I started playing the card game Magic The Gathering in 8th grade and I still collect the cards and play with family and friends when I visit New York. I love to keep educating myself and look to grow as a person daily. 

Favorite number: 28 because it was the number of my favorite football player Marshall Faulk
In 5 years I'll be  . . . Math director of a high school and my dream is to "Teacher of the Year."
Hobbies: I collect football cards and play the card game Magic the Gathering
Favorite Math Joke: I had an argument with a 90° angle. It turns out it was right. It turns out, it was right!


Charlotte Norejko, Instructor

Hi, my name is Charlotte!  I’m a sophomore at D’Evelyn High School and absolutely love math. When I was younger, math was my hardest subject until a teacher showed me that it’s OK to use different methods to solve problems. Math is the language of the universe, and not everyone sees it the same, so it’s important to help everyone find their own way through it.  Thanks to that teacher, I gradually started to love math and gained an appreciation for teaching. I decided to come to Mathnasium because helping others learn math is one of the most rewarding experiences out there.  When I go onto college, I plan to pursue a career in Cybersecurity, which involves a lot of math behind the scenes! 

Favorite Number: My favorite number is 18 because 9+9 =18, and 9*9=81, which is just 18 backwards.  Additionally, 18 = 6*3, and 6+3=9, half of 18.

Favorite Math Joke: i 8 θ π, sorry I didn’t leave you any.

Favorite Math Topic: I couldn’t explain why, but I love factoring.  I find that it makes problems easier to understand and solve, and there’s something very satisfying about being able to break apart expressions.

Hobbies: Between reading and writing, my favorite book genres are sci-fi and high fantasy.  I love the complex worldbuilding, but my favorite thing about both genres is the detailed swordfighting.  My love of swords eventually led me to pursue them for myself!  I did saber fencing for three years and last year switched fields to kendo, a Japanese martial art sword fighting.  Although swordfighting sounds dangerous, it’s actually safer than football or rugby since everyone wears lots of armor and the swords are typically dull, bendable metal or wooden/bamboo.

Tim Young, Instructor

Hello, my name is Timothy Young and I will be a senior at Hope Academy while concurrently enrolled in Red Rocks Community College in the fall. As a kid, I have always loved math and hope to help others to have that same passion. In school, I would always help my friends with math problems, and when hearing about Mathnasium, I found it to be a perfect opportunity to both help kids learn math, and to help grow my own skills in both math and teaching. When entering Mathnasium, the people there were very kind and welcoming and the environment was very relaxing. In my free time, I like to play basketball, go camping, play music, and hang out with friends.

What is your favorite number: My favorite number is 7. I think I like the number 7 as it organizes the days of the week.

Favorite Math Joke: Why was six afraid of seven? Because seven eight nine!

Hobbies: Playing Basketball, Piano, Violin, and Camping.

Fun Fact: I like playing video games!




Math is fun with the AMAZING instructors at Mathnasium of Littleton!