Mathnasium 2829 E. 29th Avenue, Spokane WA 99223 (509) 960-6284

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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:

Jerry Post, Owner

Jerry is the Center Director and owner of Mathnasium of Spokane South.  Prior to opening the Mathnasium center, Jerry worked as the Executive News Director for the KXLY Media Group.  He has an MBA from the Kelley School of Business at Indiana University, and a BA in Communications from the University of Michigan.  Jerry has always had a love of math and numbers, and is excited to help children throughout the Spokane community truly understand math by teaching it in a way that makes sense to them.

His wife also loves numbers - especially temperatures!  Jerry is married to Kris Crocker, the Chief Meteorologist at KXLY 4 News.  They have three daughters in Spokane public schools, and love to explore the outdoors in the Inland Northwest. 


Chelsea, Chief Operations Officer

Chelsea leads the teams at both of our Spokane Mathnasium centers as our COO.  She joined our team as an instructor in 2018 and has been instrumental in helping hundreds of students build math skills and confidence the Mathnasium way.  
Chelsea originally went to Ferris State University in Michigan to become a pharmacist.  Once she went to pharmacy school, she became a biochemistry teacher's assistant. She loved her job as a TA so much, she left pharmacy school to go into education administration. She graduated from Ferris State University in 2016 and she's been teaching students of all ages ever since! 
When's she not whipping up a new learning plan at Mathnasium, she's whipping up a new recipe in her kitchen! Chelsea loves to cook and bake and sometimes brings in treats to share.

Nick,  Assistant Center Director

Nick is a senior at Eastern Washington University who graduated from Ferris High School in 2018. 

Nick is majoring data analytics but has previously explored several majors including mechanical engineering, computer science, and math. One thing he knows for sure however is that he enjoys math a whole lot.

Nick's other interests include watching, playing, and coaching baseball as well as playing piano.  



Sara, Assistant Center Director

Sara is a graduate of West Seattle High School in 2019. She's currently a Senior at Gonzaga studying Criminology and Psychology She hopes to be a Juvenile Psychologist and work with kids in the foster care system.

In her free time she loves playing with her dog, reading, and exploring Spokane!

Sara loves working with the students at Mathnasium everyday, watching them grow their mathmatical talents as well as their personalities. Nothing beats watching a student have that 'aha' moment after understanding a concept.


Wendy, Instructor

Wendy is a junior at Vanderbilt University (Anchor Down!) in Nashville, TN studying Elementary Education and Secondary Language Studies with a minor in music. She grew up in Spokane and graduated from Ferris High School in 2020.

Wendy is a member of her university’s running club, plays flute in the wind ensemble, and is a tour guide for prospective students. In her free time, she loves hiking, trying out new restaurants in Nashville, and petting dogs.

At Mathnasium, she loves exploring different ways to learn math concepts and celebrating the diversity of thought behind students’ problem-solving methods.


Sebastian, Instructor

 Hi! I’m Sebastian I was born in and raised in Hawaii.  I decided to attend Gonzaga University in Spokane, WA to expose me to a new experience, and continue my education. Since a young age my favorite subject has always been math, and I think it was because I had such great math teachers as a kid which gave me a strong foundation to develop my skills. Currently, I am working towards a minor in Applied Mathematics, and from my experience, I found math has made me a better           problem solver and quicker thinker. 


I was raised in an unique environment and culture, giving me a great appreciation for our oceans. However, It wasn’t until the start of COVID-19, didI really get back into surfing, and over the pandemic I surfed every day for hours after online classes back home.


Mayla, Instructor

Mayla is a junior in the Honors College at Western Washington University where she's studying mathematics. 
Mayla has been instructing at Mathnasium since her junior year at Ferris High School, where she excelled in AP Chemistry, AP Computer Science, AP English, AP Calculus BC and Japanese.  
She loves being able to express a genuine appreciation for mathematics in an environment where people can learn from and even reciprocate it.

Kenny, Instructor

Kenny has a Bachelors in Mathematics from Gonzaga and a Masters in Mathematics from WSU. He plans on pursuing a teaching career and may go on to get a PHD in Pure Mathematics. Kenny dreams to work for the NSA!
Kenny loves exploring math concepts with students and help everyone learn.  In his free time, he loves watching sports!





Ryan, Instructor 

Ryan graduated from Spokane Community College with an AA in Computer Science and is pursuing a bachelor's degree in math at Gonzaga University. He has more than a decade of experience in math instruction, tutoring students from 2nd grade all the  way through collegiate Calculus 2.

Ryan also works at Engie Insight, where he writes programs that automate navigating a website from login to payment submission, paying utility bills for many large companies such as Starbucks and McDonalds.


Sophia, Instructor

Sophia is a sophomore at Western Washington University where she's pursuing a degree in Supply Chain Management.  The program includes courses in mathematics, physics, chemistry, finance, and accounting so it's good thing she loves working with numbers!
Sophie graduated cum laude from Lewis and Clark High School and was a member of the Mt. Spokane Ski Race team.
Her hobbies include photography, traveling, video games and skiing.


Ryan, Instructor

Ryan is majoring in Computer Science at Gonzaga University.  He is a graduate of Gonzaga Prep and worked at Gonzaga University's Math Tutoring Program and worked as a mentor for students at St. Aloysius.
Ryan loves math and programming because they involve abstract problem solving skills, often with multiple ways to arrive at the same solution.



Calvin, Instructor

Calvin is a graduate from Gonzaga University. He studied Business Administration and minored in Communication Studies. He has plans to study Environmental Science in graduate school.
Math has been one of Calvin's favorite subjects since he was a kid. Beyond doing math homework and studying for math tests, Calvin also likes solving "magic" math problems and puzzles!





Celeste, Instructor

Celeste is from Sacramento, California and pursuing a nursing major at Gonzaga University. When she's not studying or working, she loves exploring downtown Spokane!  Math has always been her favorite subject because she loves the feeling of finally figuring out how to get the right answer to a problem, and seeing the solution unfold as you work the problem out. 

She loves Mathnasium, because she can see student’s confidence grow as they work through their problems and get more and more questions right.


Xzandre, Instructor

Xzandre is a junior at Saint Louis University where he majors in biology and chemistry with a goal of being a pediatric cardio thoracic surgeon.  His hobbies include biking, reading and playing with his dogs.  Xzandre graduated from Gonzaga Prep where he was an honors student and standout track athlete.
Xzandre says "I like math because I enjoy the patterns and rhythm you can find within problems.  I can’t wait to work with your child and help them figure out these patterns!"



Brianne, Instructor

Brianne is a sophomore at the University of Washington where she's pursuing a career in medicine.  She graduated summa cum laude from Lewis and Clark High School and was class vice president.
Ever since she was a child, Brianne loved working with numbers, and enjoys sharing her guidance and knowledge of math with future generations.
In her free time, she likes film photography, skiing, rock climbing, and painting.



Meredith, Instructor

Meredith is a junior at the University of Michigan (Go Blue!) where she's studying environmental engineering.

She's a 2020 graduate of  Lewis and Clark High School, where she led the LC astronomy club, played piano for the LC jazz band, and played cello in the Spokane Youth Symphony.

Meredith loves math because it's so versatile and can solve so many types of problems.  In her free time, she enjoys playing her instruments, playing tennis, drawing, and spending time with her friends.  


Caleb, Instructor

Caleb is studying for a bachelor's degree in computer science at Whitworth University. 
Growing up, Caleb always excelled in mathematics and Mathnasium has provided a great opportunity to share his skills. 
Some of his hobbies include skiing, dirt biking, computer building, and reading.






Kaitlyn, Instructor

Kaitlyn is currently attending Gonzaga Preparatory School. She loves to ski at Schweitzer Mountain in her free time.

She also likes to read and volunteer as a tutor at her school. Her favorite part about teaching at Mathnasium is working with kids and seeing them understand a concept that was once difficult for them.






Griffin, Instructor

Griffin Satterfield was born in Dallas, Texas and raised in Spokane. 
He's currently attending Gonzaga Prep where he balances a challenging schedule of AP and honors classes with cross-country and lacrosse.   Griffin loves hanging out with friends and being outdoors in the PNW.  He loves most music, especially any songs from Ed Sheeran, Kanye West or Bruno Mars. 
Griffin says his favorite thing about working at Mathnasium is meeting new kids every day and watching them grow as mathematicians.



Avery, Instructor

Avery is a current Senior at Gonzaga University, studying Computer Science! Avery loves Lasagna, helping students connect with math concepts, and watching the moment when a concept clicks in a students head!

Avery is a Spokane native and love exploring new places!