Meet Our Instructors

  • 16 Bachelors degrees
  • 10 Masters degrees
  • 3 Ph.Ds
  • 1000’s of hours of teaching

Absolute Value Tutoring offers professional educators who are experts in their fields. Please browse through our experienced staff below.

Reasons to consider Absolute Value Tutoring

We are small and plan to stay that way. Think of us an an educational boutique. Our classes are either one-on-one or small groups with a maximum of six students.

The Latin definition of the word “tutor” is “to guard or watch.” For this reason, we hire teachers who are passionate stewards of education. All of our tutors are professional educators who possess mandatory state and federal clearances.

Nestled inside the Galleria with an updated space and the latest technology, Absolute Value is designed for a positive experience.

Gabriel Petesch

A Fide Master (FM) since 2014, Gabriel is a full-time chess coach and instructor.

Mark Slagel

Mark has tutored pre-algebra through Calculus and above for the last 20 years. He  has worked for the Department of Defense and Department of Energy for the last 18 years as a mathematician and Intelligence analyst, and recently went back to school to get a Master’s in Instructional Leadership and secondary math teacher certification from […]

Yucheng (Josh) Xie

Josh earned a Bachelor of Science degree in Mathematics and Philosophy from the University of Pittsburgh.  He was a Teaching Assistant in the Mathematics Department and a tutor in Pitt’s Math Assistant Center (MAC). Josh enjoys working with students of all math levels from Algebra 1-Calculus, although he especially likes teaching Analytic Geometry and Trig/Pre-calc.

Heather and Tom Earley

As the founders and co-owners of Absolute Value Tutoring, Heather and Tom have been educating students of all ages for over a decade. Heather, a graduate of Sewickley Academy, studied at American University in DC and spent many years working in broadcast television before pivoting to her true passion: education. She holds a degree in […]

Simon Ainsworth

After obtaining his Bachelor’s degree from Penn State University, Simon went on to earn a Master of Arts in Teaching from Chatham University and another Master’s in Applied Mathematics from California University of PA. He holds teaching certifications in Middle Level Math (grades 4-8) and Secondary Math (7-12).  Equally comfortable with classroom and online teaching […]

Martin Cohen, Ph.D.

An Emeritus Associate Professor of  Mathematics at the University of Pittsburgh, Dr. Cohen (or “Marty,” as he prefers to be called), enjoys working with students of all skill levels. He is one of the primary instructor for our SAT prep programs.  Fun fact: Over a five-year period, Marty wrote several math problems for College Board, […]

Heather Squires Moore

Heather is a dedicated child advocate and teacher with a focus on individualizing the eduction of students with special needs. She earned a Masters of Education as well as a Special Education Certificate from Georgia State University. In addition to her expertise with students with special needs, Heather has spent the past five years working […]

Sean Elliot Martin, Ph.D.

A favorite of our students, Dr. Sean has been teaching at Absolute Value since we opened our doors in the summer of 2020. Sean’s academic credentials are impressive and varied: He is a professor of Intelligence Studies at Point Park University, holds a Ph.D in English,  an MA in English Literature, a BA in Psychology, […]

Schedule an appointment or stop in for a visit!

Can’t find what you are looking for? Maybe you just want to speak with an instructor. Whatever the case, fill out the form below to get in touch with us, or feel free to visit us at the Galleria. We’re there 7 days a week!

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