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.

Tammie Yoakum

Owner
Hello, my name is Tammie Yoakum, and I grew up in Glendale with my sister/co-owner, Betsy. Before I started working in the center fulltime, I had a 30-year career in the premium finance industry. I was blessed to have that career, but Mathnasium is a ton more fun. The best part of being at Mathnasium is to see the "aha" moments and to see a students confidence grow. When I'm not working, I like spending time with my family and friends. I also love music, movies, reading and traveling.

Keir Bradshaw

Lead Instructor
Hello, my name is Keir Bradshaw and I am currently studying full-stack web development through ASU. I have always enjoyed math and I hope to share that with the students here at Mathnasium. In my free time, I like to play games with my friends and watch the Suns/Cardinals anytime they are playing!

Nandini Gopalakrishnan

Lead Instructor

Hi! My name is Nandini and I am currently a Senior at Desert Mountain High School. I've always enjoyed math and it is my favorite subject. I really like teaching math and I hope to make a lasting impact on everyone who comes to Mathnasium. In my free time, I enjoy reading, playing tennis, and spending time with friends and family.

Alexis Muirhead

Instructor

Hello! My name is Alexis and I am a Senior at Xavier College Preparatory. I am so excited to work at Mathnasium and share my love of math to others. In my free time, I enjoy riding horses, reading, and listening to music.

Ryan Delmarter

Instructor

Hello! My name is Ryan Delmarter, and I am currently a Senior at Pinnacle High School. I have always had a passion for math, and working as an instructor at Mathnasium is a great opportunity to share my passion with others. I also love animals, basketball, and anything competitive with my friends.

Ryles Terry

Instructor

Hi! My name is Ryles Terry and I am a sophomore at Cactus Shadows. I wanted to work at Mathnasium because I have always excelled at math and enjoyed teaching! In my free time I enjoy hockey and guitar. 

Natalie Zucco

Instructor

Hello! My name is Natalie Zucco. I’m so excited to be an instructor at Mathnasium! I grew up in New Hampshire and recently moved to Phoenix to be closer to family. I’ve always loved math, and I am working towards getting my degree in Mathematics. I also enjoy reading, the ocean and herbalism.  

Kaylee Rollins

Instructor

Hi, I’m Kaylee and I’m a senior at Cactus Shadows High School! I love teaching and working with kids and helping them learn! In my free time, I enjoy singing and playing the piano.

Bill George

Instructor

Hi, I am Bill George! I earned a Bachelor of Science in Chemical Engineering from Lehigh University. Throughout my extensive career designing and selling industrial water systems across various industries, I applied mathematics daily. Teaching at Mathnasium allows me to share my enthusiasm for math with students and give back to the community. In my spare time, I enjoy cycling, hiking, and woodworking.

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.

Quote Quote
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

Student using math cubes to solve fractions
Student working with a math tutor at a local math learning center

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!

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