Our Portsmouth, RI Team

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.

Math Centers / Portsmouth / Our Team

Ryan Costa

Center Director

With 22 years of math teaching and tutoring experience, I specialize in delivering top-quality instruction. I quickly assess students' understanding, build from their foundation, and address gaps to ensure long-term success. My approach emphasizes problem-solving strategies over rote memorization, helping students tackle increasingly complex challenges with confidence.

I hold a B.A. in Mathematics from UMass Dartmouth, where I tutored in the Math and Business Center. My career includes roles at Sylvan Learning Center, Dartmouth High School, and Brockton High School—one of the nation's top-ranked schools. My training there, in Massachusetts' top-tier education system, refined my ability to inspire and elevate student learning.

Emily Parsons

Assistant Center Director

Emily Parsons attended St. Michael's College in Colchester, VT, where she graduated with Kappa Delta Pi honors in education. She worked in public and private school settings in northern and central regions of the state, before returning to her childhood town of Portsmouth, RI in the summer of 2020.

Elijah Penny

Center Director

Elijah is a passionate and dedicated math educator with a strong foundation in problem-solving and critical thinking. Holding a B.S. in Mechanical Engineering, he brings real-world applications into the classroom, making complex mathematical concepts more accessible and engaging for students. With three years of teaching experience and eight months as a Mathnasium instructor, Elijah has worked with diverse learners, fostering confidence and a deep understanding of math. Known for his patient and playful approach, he is committed to helping students develop the skills they need to succeed in math and beyond.

Brandy Baker

Associate Center Director

Brandy has 18 years experience teaching math in TX, and a Bachelor’s in math education. She’s been here a year, and thinks it’s the best job ever! Brandy loves our New England weather, especially the snow.

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.

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

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Our Team at Mathnasium of Portsmouth