Mathnasium 15909 Westminster Way N, Shoreline WA 98133 (206) 268-0724

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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:

  Steve Ruiter, Center Director 

Steve is the Center Director at Mathnasium of Shoreline. Prior to opening his Mathnasium center, Steve worked as Director of Systems and Programming with Milliman, specializing in building systems tools for pension actuaries. Steve is a Fellow of the Society of Actuaries. He has an MS in Appled Mathematics from Georgia Tech and a BS in Mathematics and Computer Science from Calvin College. Steve has loved math his whole life and is enthusiastic about helping every child in the Shoreline area to truly understand math by teaching it in the way that makes sense to them. Also as a lifelong competitive swimmer, he is excited to be opening up his center next door to Goldfish Swim Academy. Steve has been involved with Shoreline Math Olympiad since his oldest son was in fourth grade in 2004 (that son is now working on a math PhD), and Steve is excited to bring the Mathnasium Method to the children in the community. 


ZSpenceLeadInstructorZachary Spence, Lead Instructor

Zack is a lead instructor at Mathnasium of Shoreline.  He graduated from Southeast Missouri State University with a B.S. in Biology and a B.S. in Chemistry.  

Zack has enjoyed math from a young age and loves to share that passion with students. Although keeping the math entertaining and fun is crucial, he likes to help students see beyond the symbols to understand what is actually going on. Zack spent the last two years instructing the Mathnasium way at a center in Missouri. He has also tutored college studeents in science and mathematics for four years and is currently preparing to go back to school for a PhD in physics.



Craig Huber, Instructor

Craig has spent all of his adult life working to help others understand and enjoy mathematics. He began by tutoring family and friends in high school, and then in college made his way to tutoring at the University of Florida’s Teaching Center. He tutored there while he was a student, received his BS in Mathematics and Physics, and eventually became the Coordinator of the center. He continued on to earn his Master’s in Mathematics Education. Craig moved to Seattle and is now an associate professor at North Seattle College, Shoreline Community College, and Seattle University. He loves showing students useful, interesting, and impactful ways that math is used every day. He is excited to extend his experience to younger students and help give perspective and context for students’ future courses, degrees, and careers.  



Amanuel Mamo, Instructor

Aman is a senior student at the University of Washington majoring in Mechanical Engineering. He was born and raised in Ethiopia, where he learned the basics of math. Aman tutored college-level calculus for two years at Spokane Community College. He is also a research assistant in the UW Biology department which is collaborating on the “Smellicopter” project, a bio-inspired odor-guided micro-air vehicle. He is using Robot Operating System (ROS) and controls associated with micro-scale quadrotors to enhance the capabilities of this odor tracking air vehicle. In his free time, Amanuel enjoys playing soccer and is a massive supporter of European soccer.



Bridget Byington, Instructor

Bridget is a junior attending Shorewood HS. She enjoys math because of it's applicability to all apsects of life, and she enjoys cracking the "puzzle" of finding the right answer. Bridget has grown up in Shoreline where she loves the combination of big city amenities and the natural beauty that Seattle offers. In her free time she likes to listen to music, spend time with friends, hike and read.


Vivian Corcoro, Instructor

Vivian is a junior at Shorecrest HS, but attending Shoreline Community College this semester in the Running Start program. More info and a picture coming soon!


Geneva Boersema, Instructor

Geneva is a junior attending Shoreline Christian School. An apple that has not fallen far from her familiail tree, she learned to love math from her father who is a math professor. Her favorite part of math is discovering how it works. She looks forward to passing on her love of math here at Mathnasium. Geneva is an accomplished violin player involved for years with the Cascade Youth Symphony Orchestras, and is an avid hiker. 



David Ruiter, Instructor

David is/was an instructor at Mathnasium of Shoreline on leave to pursure an undergraduate degree in piano and physics at Calvin University in Grand Rapids, MI, where he is involved in orchestra on upright bass and in an audition an upright bass. David was a National Merit Finalist, so he knows a few things. David is excited to have worked with his Dad and pass on his love of and expertise in Math to kids at Mathnasium last summer. He hopes to have a victorious return next summer.





The best way to see if we are a good fit for your child’s needs is to visit our center, meet the instructors and get a Complimentary Math Skills Assessment.  

Call Now (206) 268-0724 and Let's Get Started!