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

Tammie grew up in Glendale alongside her sister and co-owner, Betsy. Before joining Mathnasium full-time, she spent 30 years in the premium finance industry. Her favorite part of Mathnasium is witnessing students’ “aha” moments and watching their confidence grow.

She loves being part of a positive, student-focused environment where math makes sense. Outside of Mathnasium, Tammie enjoys spending time with her family and friends, as well as music, movies, reading, and traveling.

Aly Norling

Assistant Center Director

Aly was born and raised in Phoenix and recently graduated from Arizona State University with a degree in mathematics. With a background in cybersecurity, she combines analytical skills with her passion for teaching and helping students build confidence in math.

Outside of Mathnasium, Aly enjoys playing ice hockey and participating in outdoor activities such as hiking, rock climbing, and orienteering. She also loves to spend quiet time indoors reading and learning new things.

Georgiana Skidd

Lead Instructor

Georgiana, a senior in the CREST Computer Science Program at Paradise Valley High School, has always been fascinated by how math offers a unique way to view the world. She enjoys combining her love of math with teaching and helping students succeed. 

She is also passionate about art, reading, and exploring new areas of knowledge. Georgiana is excited to share her enthusiasm for learning with Mathnasium students and help them develop confidence in their math skills.

Lauryn Hardaway

Online Instructor

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.

Dylan Urias

Instructor

My name is Dylan and I am a graduate student studying Statistics at ASU.  I have always wanted to teach, so Mathnasium is a good fit for me.  Outside of school and work, I like playing bass guitar, volleyball, pickleball, working out and spending time with my family and friends.

AJ Jenkins

Instructor

Hello, My name is AJ.  I was born and raised in San Diego, CA, made my way to Pennsylvania, then moved to Phoenix to be with my sister and closer to home. I've been with Mathnasium for almost a year now and have loved working with all of the different students. I aspire to work in Neuroscience later in life.  I enjoy painting, planes, trucks and road tripping with my cats.

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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