Our Team at Mathnasium of Mount Dora

John Androulakis

I’m one of the owners and operators at Mathnasium of Mount Dora. As an Engineer, I bring years of experience leading complex projects for companies like Disney, IMAX, and TransUnion into an area that matters deeply to me: helping students thrive in math. After a career spent building strong teams and guiding large technology and infrastructure initiatives, I wanted to put my skills to work in a way that directly impacts families and the community. That path led me to Mathnasium, where I can combine structure, leadership, and a passion for education to create a learning environment where kids feel supported and capable.

At my center, I’m committed to making sure every student feels understood and confident from the moment they walk in. I work closely with families to identify each child’s unique needs and oversee a team of trained instructors who deliver personalized instruction in a friendly, fun, and encouraging way. Whether a student is catching up, keeping up, or getting ahead, my goal is to reduce stress, build lasting confidence, and show them that they are capable of far more than they imagine—not just in math, but in themselves.

Geetika Kesavan

Hi! I’m Geetika, a high school student with a passion for math and problem-solving. I enjoy helping students gain confidence by making complex concepts easier to understand. My goal is to create a positive and encouraging learning environment where every student feels capable of success.

Madge Thombs

Dr. Madge Thombs is a certified math teacher in Florida, Rhode Island and Massachusetts. She earned a BA in Math from Assumption University, a Master's in Math Education from Worcester State University, and a Ph.D. in Instructional Technology from Nova Southeastern. 

Her career includes years of teaching math and computer science on the secondary level and computer programming for several companies. She retired after 20 years as a Professor of Education at Roger Williams University in Rhode Island. At RWU, she taught math methods and technology courses on the undergraduate and graduate levels and supervised student teachers. 

After her retirement, she moved to Florida and supervised student teachers for UCF. She is now involved with homeschooling some of her grandsons and enjoys her time at Mathnasium working with students of all levels.

Isabella Miller

Hello! I'm Isabella, a current undergraduate studying Electrical Engineering and Computer Science at UCF. I love helping students understand math better with each problem. I do my best to make math less daunting for all students.

Christopher Stotter

Hi, I’m Christopher!
I’m an Electrical Engineering student at the University of Central Florida. Before studying engineering, I started in trade school as an electrician, where I learned how important math and problem-solving are in real-world work. That experience helped lead me toward electrical engineering, where I’ve continued developing my skills in applied mathematics and physics.
I’ve also worked as a physics TA, which gave me the opportunity to help students work through challenging concepts and build confidence. At Mathnasium, I enjoy breaking problems into smaller, more manageable steps and helping students understand the “why” behind what they’re learning. I know math can be frustrating at times, so my goal is to make it feel easier to comprehend and help students become more confident problem-solvers.