Sarah
I'm usually not one to write reviews on Google, but I feel like this place genuinely deserves one. My child al...
See more reviews here




Sarah
I'm usually not one to write reviews on Google, but I feel like this place genuinely deserves one. My child al...
See more reviews hereOur Results
94%
Math Skills
of parents report an improvement in their child’s math skills and understanding.
93%
Attitude
of parents report improved attitude toward math after attending Mathnasium.
90%
Success
of students saw an improvement in their school grades.
Our Results
The Proof Is In The Numbers
Math Skills
of parents report an improvement in their child’s math skills and understanding.
Attitude
of parents report improved attitude toward math after attending Mathnasium.
Success
of students saw an improvement in their school grades.
At Mathnasium of Desert Ridge, our tutors use the Mathnasium Method™ to help students develop a deep understanding of math. This proprietary teaching approach blends personalized learning plans with mental, verbal, visual, tactile, and written techniques, ensuring each student receives math help tailored to their unique needs and learning styles.
The Mathnasium Method™ is designed to build a strong foundation for math excellence, empowering students to truly understand and even enjoy math.
Our caring and specially trained math tutors in Phoenix deliver face-to-face instruction in a supportive, engaging group environment. We support PreK-12 students of all skill levels, both in-center and online, to help them reach their full math potential.
Learn how Mathnasium tutors helped Malachi gain confidence in math.
At Mathnasium of Desert Ridge, each student receives a personalized learning plan based on a detailed assessment of their skill level, challenges, and academic goals.
This tailored approach allows students to learn at their own pace while building critical thinking and problem-solving skills, along with the confidence they need to excel in their math journey.
Discover how Mathnasium helped Maddie transform her math skills to achieve more confidence in the subject. Initially struggling with the lowest math grades in her class, Maddie worked with our tutors using a personalized approach tailored to her specific needs.
Math Tutors Near You
We specialize in math-only instruction with a customized and fun learning approach that delivers results. We proudly serve communities in North Phoenix, including:
Specially Trained and Caring Team
Betsy Washburn
Owner and Center Director
Betsy holds a Bachelor’s in Business Management from Arizona State University and a Master’s in Curriculum and Instruction from Western Governor’s University. She earned her teaching certificate in Southeast Missouri and taught junior high and high school math for 11 years.
Her experience as Center Director at Mathnasium of Blue Valley in Kansas fueled her passion for the Mathnasium Method™ and helping students make sense of math. Betsy returned to Phoenix in 2018 to be near her family. She has two married children and is excited to welcome her first grandchild in 2025. Betsy enjoys reading, traveling, and spending time with family.
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, building a strong career in business management and client support.
Her favorite part of Mathnasium is seeing students experience “aha” moments and grow in confidence. Tammie loves being part of a positive, student-focused environment where math truly makes sense. Outside of work, she enjoys spending time with family and friends, as well as music, movies, reading, and traveling.
Maxwell Tewelis
Assistant Center Director
Maxwell is a graduate of Northern Arizona University with degrees in mathematics, chemistry, and criminology. He has always been fascinated by math’s versatility and the unique ways students approach problem-solving.
He enjoys fostering a positive learning environment and helping students develop strong skills and confidence. Outside of Mathnasium, Maxwell enjoys caring for his younger brother, reading, watching movies, and spending time with friends.
Aliya Carrera
Assistant Center Director
Aliya is a Pinnacle High School graduate and has been part of the Mathnasium family for nearly six years. Her experience as both a student and team member has given her a deep appreciation for the Mathnasium Method™.
She enjoys supporting students, whether they need extra help or want to get ahead. Aliya loves connecting with families and creating a welcoming atmosphere. In her free time, she enjoys listening to music, spending time with her sister and her cat, and learning new skills.
Mary Savidge
Assistant Center Director
Mary is a retired math teacher who brings a wealth of experience and passion for education to Mathnasium. She loves the logic of math and enjoys helping students understand concepts while building their confidence.
As Assistant Center Director, Mary values Mathnasium’s supportive, engaging atmosphere, where learning is both fun and effective. She thrives on guiding students toward success and seeing their excitement when concepts click.
Noel Hester
Lead Instructor
Hello, I'm Noel. I have studied physics and math at ASU. I have a deep passion for learning and helping students achieve their best! In my free time. I like to write music and meditate outside.
Monika Mattick
Lead Instructor - Online and Homeschool
Hi! I’m Monika Mattick. I have an Elementary Education degree (math emphasis) from GCU. I served for 5 years as a private math and language arts tutor in Southern California, then moved to Fountain Hills, Arizona in October 2023 with my husband, Adam. My greatest passion within education is not in the traditional classroom, but rather one-on-one tutoring. Especially math! Students have said I get way too excited for math time! My goal is to inspire your students to love math just as much! Having been homeschooled from 3rd grade through my senior year of highchool, I have a particularly deep passion for the homeschooled kids of Mathnasium. In my free time, I love to bake, do artsy projects, and spend time with family!
Students can take 3 easy steps to enroll at Mathnasium.
All students begin their Mathnasium journey with a diagnostic assessment that pinpoints what they already know and what they still need to learn.
FAQ
Mathnasium of Desert Ridge is located on High Street, adjacent to Desert Ridge Marketplace, next door to Murphy Orthodontics, and across the street from Soda Jerk. High Street offers family-friendly restaurants and shopping, making it a convenient stop for busy families.
We proudly serve students from across North Phoenix, including:
SkyCrossing Elementary
Wildfire Elementary
Desert Trails Elementary
Pinnacle High School
Explorer Middle School
Boulder Creek Elementary
Quail Run Elementary
Fireside Elementary
Yes, Mathnasium of Desert Ridge offers both in-center and online math tutoring.
Whether students attend in person or online, they receive live, face-to-face instruction in a supportive, small-group environment.
No, the learning experience is the same in both formats.
Students receive personalized learning plans and real-time instruction from our specially trained tutors, ensuring consistent support and results whether they attend online or in the center.
We can help students learn and master any PreK–12 math class and topic, from early counting and number sense to Algebra, Geometry, Trigonometry, and higher-level high school math.
Our tutors work with students to build solid foundational skills, improve performance, and boost confidence in math through personalized instruction and proven teaching techniques.
Mathnasium of Desert Ridge provides premium value tutoring by combining a superior learning experience with an efficient monthly fee structure that keeps costs low.
There is a flat enrollment fee for our program, and students attend regularly. After a diagnostic assessment, we create a personalized learning plan with a recommended session frequency tailored to your child’s goals.
To learn more, contact us at [email protected].
No, pricing is the same for online, in-center, or hybrid options. Families can choose the format that works best for their schedule and preferences.
Each student begins the enrollment process with a diagnostic assessment to help us understand how they think about math and identify their learning strengths and knowledge gaps.
We use these insights to create a personalized learning plan that supports their progress and success.
At Mathnasium of Desert Ridge, we do not follow a traditional curriculum.
We use the Mathnasium Method™, our proprietary teaching approach that combines personalized learning plans with proven instructional techniques to help students truly understand and even enjoy math.
Following this approach, we build upon what the student already knows, gradually introducing new concepts and using interactive teaching methods to build the skills and confidence that will serve them in the classroom and beyond.
Yes, we support students at every level.
Students who need extra help receive focused, confidence-building instruction to close knowledge gaps and rebuild foundational skills.
Advanced students benefit from math enrichment programs that challenge their thinking and deepen their understanding of math to keep them engaged and motivated.
Absolutely! We welcome homeschooled students from North Phoenix and the surrounding areas. Homeschooling families appreciate our flexible scheduling and personalized instruction that complements their unique learning paths.
Yes, our tutors reserve time during each session to help students with their math homework so they can reinforce what they are learning and feel confident in class.
No, we do not assign homework. All instruction and practice take place during sessions, so students can focus on learning and making progress while they’re with us.
Yes, we help students prepare for standardized and school-based math tests, including state assessments, SAT®, and ACT®.
Our test prep programs include targeted practice, personalized strategies, and confidence-building support.
We are offering homeschool hours Monday - Thursday from 9a - 12p.
Schedule Free Assessment
Call today and schedule your free assessment and we will share how we are a perfect fit with ESA/...
Schedule Free Assessment
Mathnasium is an approved vendor for Empowerment Scholarship Account (ESA). Call today to schedu...
Contact Us
Mathnasium of Desert Ridge is now proud to be a PVUSD approved partner! Come and choose your math...
Contact Us
This summer we are offering 3 unique STEAM Camps, The Summer Boost (1st-4th), ACT/SAT Prep, and Sess
Schedule AssessmentKnowledge Hub
May 4, 2026
Sep 10, 2025
Oct 10, 2024
Jul 25, 2024
Jul 18, 2024
5355 E. High Street, #109
Phoenix, AZ 85054
| Call: | (602) 374-3445 |
| Text: | (833) 369-4077 |
| Email: | phoenixnorthridge @mathnasium.com |
Mon - Thu
1:00PM - 7:00PM
Fri
1:00PM - 5:00PM
Mon - Thu
10:00AM - 7:00PM
Fri
12:00PM - 5:00PM
Sat
CLOSED
Sun
CLOSED
| Mon - Thu: | 1:00PM - 7:00PM |
| Fri: | 1:00PM - 5:00PM |
| Mon - Thu: | 10:00AM - 7:00PM |
| Fri: | 12:00PM - 5:00PM |
| Sat: | CLOSED |
| Sun: | CLOSED |