Contact Us for more information.

How did you hear about us?

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:



The Director  

The Center Director, at Mathnasium of Riverview, is a retired engineer, with experience in civil/environmental and mechanical engineering.   He has two children, 12 year old son and 30 year old daughter.

He is an avid volunteer, and gives his time freely to mentor and teach young people. 

He believes, and makes it possible, for the Mathnasium Method to be available for

ANY AND ALL students that are in need of math help! 

Regardless of socio-economic status.

As a substitute teacher at the Kid's Community College- Southeast campus teaching K through 4th grade, he continually volunteered to help maintain and repair the facility.  Making sure the kids had a safe and clean environment to learn, the Campus Director was so pleased with his teaching and demeanor with the kids that she hired him as the Director of the after-school program Impact Children For Life (ICFL). 

Soon afterwards, it became clear what he wanted to do- teach kids full time and concentrate on math, engineering and sciences.  The idea of the Mathnasium of Riverview was born.

He has a way with teaching kids and keeping them focused and curious.  He is very compassionate and wants to see EVERY kid get their fair chance at success through math sense.  

He feels that every kid can succeed at math if they are taught in a way that actually makes sense to them as an individual! 

And at Mathnasium, we make math make sense.

 His credentials :

- Certified instructor at Mathnasium

- Bachelor of Science in mechanical engineering

- Master of Science in environmental engineering

- Math Teaching Certificate of eligibility from Florida Department of Education

- Former elementary school substitute teacher and Director of after-school care program

- Published research in fluid dynamics, heat transfer, rheological properties of simulated nuclear waste

- Fellowship recipient from the US Environmental Protection Agency (US EPA) 

- Air quality engineer in training, for the US EPA, at Research Triangle Park, NC 



Catelynn Gregory 

Assistant Center Director

Subject Matter Expert (SME):




My name is Catelynn, and I am the Assistant Center Director at the Mathnasium of Riverview. I was born and raised in the Tampa Bay area. I graduated from East Bay High School in 2017 as an Honors Graduate. I was a part of the Math National Honors Society and participated in the Algebra Math Bowl.  I am currently a sophmore at the State College of Florida and pursuing my Bachelor's Degree in Technology Management. 

 Working at the Mathnasium of Riverview is the perfect job for me. I love math, working with kids, and helping other people. My favorite part about working at Mathnasium is when kids who strive to do well in math learn to love math as well!


Jhovana Hill (Jo)

Lead Instructor


Subject Matter Expert (SME):

Alegebra I and II


Jhovana was born and raised in Michigan. She, then, moved to Georgia and later, Riverview, Florida. Jhovana Hill is currently a senior at the State College of Florida Collegiate School, which enables her to receive her associates degree at the end of her high school career. During the previous school year, her love of math lead her to become the president of Peer Tutor Club at Florida Virtual School, where she assisted students who struggled in math.

Her end goal is to become a veterinarian. For now, Jhovana spends her time volunteering at the Pet Resource Center whenever she can. She is a part of the National Honor Society and the Phi Theta Kappa Honor society on her school campus. She has also been on the Dean’s List for both of her college semesters.

Jhovana’s love of caring for children started young and persists today. She takes pride in helping others. Jhovana believes that it is important to create a comfortable and encouraging environment for children so they can reach their math goals. She is excited about enhancing math skills and motivating fun learning through Mathnasium.




Juan Santiago Buitrago


Subject Matter Expert (SME):



Santiago (Santi) has a bio in the works!



















Danya Abuamaish

Subject Matter Expert (SME):



My name is Danya Abuamaish, and I’ve always loved math even at a young age. I am currently a senior in high school and I have a 4.0 unweighted GPA. I had one of the top scores on the ACT in my entire class. I plan to take AP calculus during senior year and I’m aiming to major in engineering to further my knowledge in mathematics. I am a current member of the National Honors Society and a member of the Humanitarian Outreach Club. My favorite math subject would have to be Pre-calculus. What I enjoy the most about working in Mathnasium are the unconventional methods of teaching math and the fact that these methods stick with children forever. Mathnasium also helps create a healthy environment for children to enjoy math and to excel in ways they never thought they would.







Nhi Doan

Subject Matter Expert (SME):

Algebra 1





My name is Nhi Doan and I’m from Lithia, FL.  I graduated from Bell Creek Academy in the top 5 of my class with a 7.0 weighted GPA. Throughout high school, I was an active member and leader of Student Government, Science National Honors Society, and Mu Alpha Theta (math club). With a high level of involvement, I dedicated over 20 hours with peer tutoring in math either after school or on weekends during FSA crunch time. I’m a prospective recipient of the AICE diploma and FL Academic Scholarship. In Spring of 2019, I will officially become a gator at the University of Florida Innovation Academy studying psychology under the neuroscience track. I have a 12 year old brother and 7 year old sister and I love helping them with school work. Seeing kids clicking the wonders of math or even just any concept in general is incredibly exciting. I know that my dedication to learning, teaching and creativity will enhance each and every kid’s experience at Mathnasium of Riverview.




 Employees enrolled in College

Nailah Owens

Now attending FSU

Nailah Owens is a Lead Instructor at the Mathnasium of Riverview. She graduated from East Bay High School in the top 3% of her class, with a 4.0 unweighted GPA. While she was at East Bay, she was highly involved in school activities and programs. She was Captain of the soccer team, Vice President of the Business Club and Treasurer of National Math Honor Society. She is highly proficient in math. She took AP Calculus BC in her senior year; the class is equivalent to Calculus II college class. She is attending college, majoring in Finance.


Jordan Rundle

Now attending FSU

Jordan Rundle is an Instructor at the Mathnasium of Riverview. He graduated from Riverview High School in the top 10 of his class, with an unweighted 4.0 GPA. He was the Treasurer of both the National Honor Society and French Honor Society at his school. He has tutored kids kindergarten through eighth grade for three years at the Progress Village Literacy and Mathematics Fluency Center. He is skilled in math, having taken AP Calculus AB in his senior year. He is attending college, majoring in Statistics and Actuarial Science.



Blaike Rathburn

Now attending UF

Blaike Rathbun is an instructor at the Mathnasium of Riverview. She graduated  from Riverview High School in the top 3 percent of her class. She maintained a 4.0 GPA and enrolled in Advanced Placement and honors math courses throughout her entire high School career. She was treasurer, vice president and soon president of Student Government. She was also involved in National Honor Society and Senior Council. She is attending the University of Florida and majoring in Biomedical Engineering.









Abby Williams

Now attending UF

Abby is a high school senior at Strawberry Crest High School in the IB Program. She participates in Mu Alpha Theta (this is a math competition team), Science Competitors Club, Roboflag (this is a super awesome capture the flag competition because -wait it gets better- it is done with robots), Science Olympiad. She took HL math, a selective and fast-paced class in IB, so she will finish Calculus 3 by the time she graduates. Abby is very passionate about math. She admires how all the concepts can connect and apply to each other in ways that increase your understanding. Abby thinks there is an infinite amount of knowledge to be discovered in math, and appreciates that it can be compared to the simplest of concepts. Math is by far her favorite subject, and she plans to continue her studies by becoming an environmental engineer or a math professor. She works well with children by using her background as a baby-sitter, counselor at VBS, and coach at Boyette Sports.

Leif Tvenstrup

Now attending Florida Polytechnic University

Welcome to Mathnasium! My name is Leif, and I just finished my senior year of high school. I enrolled at HCC through the dual-enrollment program, and have taken several higher math courses. I am enrol at Polytechnic University, with a major in Nanotechnology. Mathematics has always been a skill that comes naturally to me, and I love sharing the knowledge I gain with others. I've taught in both formal/informal settings for various students, from high-schoolers to kindergarteners. It is my pleasure to help those who strive for a better education through the Mathnasium program.

















 Katherine Nitchals

Now attending UF 

 My name is Katherine, and I am currently a senior at the Academy of the Holy Names in Tampa. I was born in Minnesota and began high school in California before moving to Riverview for my junior year. I love math and have always been interested in teaching others.  As my school’s National Honors Society President, I help organize our school-wide tutoring program. Throughout my high school career, I have tutored math in both formal and informal settings.  I will complete AP Calculus BC through Florida Virtual School this year. I plan to pursue a degree in biomedical engineering. I enjoy working with kids and fellow high school students, and I am excited to share my passion for math!








Currently hiring Awesome Math Instructors

NOTE:  Before we hire any instructors, we ask the following questions...

  1. What is your educational/work background?
  2. Why are you passionate about being an instructor at Mathnasium?
  3. Why do you want to teach kids math?

If you meet our qualifications and would like to be considered for instructor duty, please contact us at

1-844- MOR MATH


At Mathnasium of Riverview we believe that MOR MATH is better!