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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:

CenterDirectorNicole Hackett, Center Director 

Nicole is a seasoned elementary math teacher.  Prior to her work at Mathnasium she worked as an elementary and middle school teacher in a Pinellas County school.  She holds a Bachelors Degree in Education with a minor in Mathematics from Warner University. Nicole also holds certifications in mathematics grades 6-12, science grades 5-9 and elementary grades K-6. She believes every child has the ability to learn in their own unique way.  Nicole loves seeing students reach that "aha" moment when whatever they are struggling with finally makes sense.  As a former teacher, Nicole knows the difference it makes when students are armed with confidence and the skills they need to be successful.  In her spare time, Nicole enjoys playing violin, painting, traveling and playing with her two dogs Mia and Libby.

Fun Fact:  My favorite word is "superfluous"

Favorite Number:  3, because the third time is a charm!

Favorite Math Joke:  "How do you know your math tutor is hungry?  Because she'll work for pi."

I Like working at Mathnasium because... It makes understanding math fun and easy.  I love math and the only thing I love more is helping other people love it too!


Whitney Detwiler, Lead Instructor

Whitney is a former middle-school math teacher, where she taught many different types of math classes, from 6th Grade Intensive Math to Honors Algebra.  Whitney was also the head Girls' Volleyball Coach!  She received her Bachelor of Science in Business from Florida State University (Go Noles!).   Whitney enjoys spending time with her husband and son, cooking, being outdoors, and traveling.

Fun Fact:  I lived in Florence, Italy for a semester in college!

Favorite Number:  22.  I met my husband when I was 22, and we were married on the 22nd of June.

Favorite Math Joke:  "Where do math teachers go on vacation?  Times Square of course."

I Like Working at Mathnasium Because:  I love working with students on their math skills.  My favorite moment is when that light bulb goes off and something they were struggling with finally clicks!  Seeing that joy on a child's face never gets old.


Marcus Hammel, Lead Instructor 

Originally from San Jose, California Marcus graduated with a BFA in Art-Graphic Design from Molloy College in Long Island, NY.  Marcus has experience in tutoring students in math as well as training players of all ages in soccer. When not teaching young mathletes, he enjoys spending time with his wife and three children.

Fun Fact:  I share the same name as Luke Skywalker from Star Wars.

Favorite Number:  I have two, 7 and 13, because they are prime examples of complimentary luck!

Favorite Math Joke:  A student went into math class and said to the teacher "To show you how well I understand fraction, I've only done half of my homework."

I Choose to Work at Mathnasium Because: The feeling of seeing a student achieve that "Aha!" moment when they understand is beyond words and very satisfying.


Zack Rosso, Instructor

Zack is a junior at Cambridge Christian School and loves helping people whenever he can.  He is a big brother and mentor to his two younger brothers, frequently helping them with their math and other life lessons.  Zack is a big hockey fan and diehard Lightning supporter (GO BOLTS!!!).  Zack has big plans after graduation, with a goal to attend Notre Dame University to major in chemical engineering.  

Fun Fact:  Although he appears to be a mild-mannered math whiz, Zack has a black belt in tae-kwon-do!

Favorite Number:  3, because I am one of three sons in our family.

Favorite Math Joke:  What do you get when you divide the circumference of an apple by its diameter?  Apple Pi!!

I Choose to Work at Mathnasium Because:  "I love math, teaching others and meeting different people.  Mathnasium is the perfect place for all three!


Darren Tran, Instructor 

Darren is pursuing a biomedical engineering degree at the University of South Florida.  When he's not binging on math problems or episodes of American Horror Story, you can find him running, programming or reading.  Darren will often tell corny jokes while he's teaching but he knows cementing a strong understanding of math into the next generation is serious business!

Fun Fact:  I think Taylor Swift's songs are pretty catchy!

Favorite Number:  42.  It's the answer to life, the universe, and everything.  Embrace it.

Favorite Math Joke:  What did the acorn say when he grew up?  Geometry!  (this is an example of "acorny" joke!)

I Choose to Work at Mathnasium Because:  I choose to work at Mathnasium because I enjoy the challenge of teaching, as every kid is unique.  I enjoy working with others to pursue a common goal, and of course, I get to witness individual successes of others, it's a great feeling!


Teysia Edmead, Instructor

Teysia currently attends the University of South Florida in pursuit of a Biomedical Science bachelor degree. During the times that she is not having a blast at Mathnasium, she is at the Wrecking Hall roller skating! If she is not skating, she is teaching her hyper pitbull puppy, Luna, new tricks at the dog park or beach.

Fun Fact:  I play a sport called roller derby!

Favorite Number:  8, because it has always been lucky for me.

Favorite Math Joke:  How do you know your math tutor is hungry? She will work for pi :)

I Like Working at Mathnasium Because:  tutoring makes such a difference in so many kids' lives and I want to be a part of that amazing difference!


Nicholas Pustam, Instructor

Nicholas is a senior at Sickles High School. He has a fascination with science and has enrolled in every science advanced placement course offered at the school.  Nicholas also enjoys sports, earning his varsity letter twice in lacrosse.  Nicholas is also president of the Spanish Honor Society. Impresionante!

Fun Fact:  I have traveled much of the world, including Europe, Central America, and Asia!

Favorite Number:  4, because I like waffles.  It makes sense to me!

Favorite Math Joke:  "Why was 6 afraid of 7?  Because 7 8 9!"

I Like Working at Mathnasium Because:  I want to pass my knowledge on to future generations.


Esha Bhatia, Instructor

Esha is a high school sophomore at Berkeley Preparatory School. She was born in Minnesota and misses the snow but is glad that Florida is a lot warmer. Esha has always loved math and wants to help kids discover that same excitement for math. Besides math, she is a big fan of running and music. In her spare time, you could find her curled up in a blanket and reading a book, probably with a cup of hot chocolate.

Fun Fact:  If I could only have one meal for the rest of my life it would be tacos.

Favorite Number:  18, because I was born on the 18th! 

Favorite Math Joke:  Why is the obtuse angle always sad? Because it will never be right!

I Like Working at Mathnasium Because:  working with kids is a lot of fun, and it’s amazing to see them grow in their skills as they gain confidence in their abilities and really start enjoying math.


Faith Colaguori, Instructor

About Me: Faith is pursuing a Bachelor of Science in Biomedical Engineering from the Georgia Institute of Technology in Atlanta, Georgia (Go Yellow Jackets!). At Georgia Tech, Faith is involved in synthetic immunity and nanotechnology undergraduate research, the Society of Women Engineers, Engineers Without Borders, and marching band! When Faith is back home in Tampa, she loves spending her time tutoring the next generation of math superstars at Mathnasium, reading, blogging about books, hanging out with her family and puppy, and traveling! 

Fun Fact: I can play four instruments - clarinet, tenor saxophone, trombone, and piano!

Favorite Number: 12! My birthday is 12/12, so 12 has always been my lucky number!

Favorite Math Joke: Are monsters good at math? No, not unless you Count Dracula!

I like working at Mathnasium because: mathematics has had a significant impact on my personal life and education, and I love being able to help other students embrace their potential and find the confidence to believe in their own mathematical abilities!

Elli Harmon, Instructor

About Me: Elli is planning to attend UCF in the fall to study actuarial science, a math-based major. She LOVES math. In high school, Elli took 5 additional math classes than she needed! She has three younger brothers, and she is in love with musical theatre! 

Fun Fact: Elli has been in over 25 productions!

Favorite Number: 0, because it is right in the middle of all positive and negative numbers!

Favorite Math Joke: When mathematicians get old, they lose some of their functions, according to the law of diminishing returns.

I like working at Mathnasium because: kids are so funny. The way they think helps me see from a different perspective. Every child has a different way of thinking. I love discovering how each kid thinks, and I love using math to explain new ways of thinking to them.