Our Team

Our specially trained math instructors will teach your child how to understand math in an individual setting; our unique approach enables us to explain concepts really well and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps kids thrive and learn! Read below to learn more about our talented team:

Doreen Thi, Center Director

Doreen earned her B.A in Mass Communication from Campbell University, North Carolina. She also earned her Master of Education from Regent University. She is very passionate about education and loves working with kids of all ages. Growing up, she has always enjoyed math yet fully understand the challenges students may face in math learning, especially if there is a gap. The great mathematician and philosopher Alfred North Whitehead made a point that although we are often urged to make a habit of thinking about what we're doing, the precise opposite is the case. Civilization advances by extending the number of important operations which we can perform without thinking about them. Likewise, students must know math facts automatically so that they don't have to calculate simple sums or products each time they are needed in a larger problem. Whether your child is advanced or in need of working with a Berkeley Lake math tutor for homework help, here at Mathnasium, we have a team of math experts to help your children boost his/her mathematics skills and move forward in school.

  Hope Doherty, Lead Instructor

  Micah Robertson, Mentor Instructor

About Micah: Micah is a Duluth High School Graduate from the Class of 2021.

Hobbies: Micah enjoys the arts, traveling, and being surrounded by friendly faces.

Favorite Number: 3. Not only was he born in the third month of the year, but Micah believes that everything good comes in 3’s.

Career Goals: Micah has hopes of becoming an Environmental Attorney.

Sarah Tan, Mentor Instructor

About Sarah: Sarah is a senior at Paul Duke STEM highschool. She is the president of her school’s DECA chapter and is part of a few other clubs on campus. She loves to support other students and help them achieve success. 

Hobbies: Sarah’s favorite pastime is to bake and experiment with new recipes. She loves to send dishes for all her friends to try. She also enjoys playing volleyball and hiking. 

Fun fact: Sarah loves the fruit durian. It’s an acquired taste and many don’t like it because of its pungent smell. 

Favorite number: Sarah’s favorite number is 9 because she was born on October 9.

Areeba Mirza, Instructor

About Areeba: Areeba is a second year student at the University of Georgia studying Public Health and Cognitive Science.  

Hobbies: Areeba enjoys cooking and traveling - always ready to try new and exotic foods!  

Favorite number: 18. After my favorite One Direction Song! 

Career Goals: I love medicine and have a passion for helping others so I hope to become a doctor in the future!

Alexa Bill, Instructor

 Kayla Nguyen, Instructor

Nicholas Chang, Instructor

About Nicholas: Nicholas is a senior at Duluth High School. He hopes to go to college for Computer Science. 

James Balbuena, Instructor

About James: James is a student in Duluth high school. He is an officer for the hispanic club Juntos. He strives to make a difference in his community and plans to use Mathnasium as one of the ways to accomplish his goal.