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Welcome to TC Math Prep!​​​​​​

My name is Thomas. For over 18 years, tutoring and academic accountability coaching have been my full-time profession. With a background in mechanical engineering, I focus on helping students understand the “why” and the “how,” not just memorize the “what.”

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I have designed structured programs and coached 1,100+ students one-on-one online in math, physics, statistics, and standardized test preparation. My primary area of expertise is SAT and ACT preparation, where I build personalized programs to help students develop structure, manage time, and make consistent progress starting at any level. ​​​​​​​​

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Structure is what turns effort into progressive improvement, long-term confidence, and lasting understanding — leading to stronger test performance and more opportunities, as seen below.

Results shown are based on students who completed my program.

TC Math Prep results chart showing SAT Math average score of 710, ACT Math average score of 27, 92nd percentile SAT Math, 88t
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Thomas Centineo teaching SAT Math function notation and composite functions on a whiteboard
Student studying with a tablet during online SAT, ACT, and math tutoring
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18+ yr Online Experience

Try a lesson today!

SAT Math comparison chart showing TC Math Prep students averaging 92nd percentile versus 61st percentile nationally, with com

​​​My SAT Math System 

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I organized all 432 official SAT Math questions into structured, progressive worksheets, homework, and timed quizzes. I also added supplemental problems so students see every variation, build pattern recognition, and create their own study guides. With consistent progress tracking, parents can be confident their child will recognize and understand every question type on test day. (ACT Prep is similar, with strong overlap)

COURSES & SUBJECTS

 Pre-Algebra 

 Algebra 1 

 Geometry 

 Algebra 2 

 Integrated Math 1 

 Integrated Math 2 

 Integrated Math 3 

 Trigonometry 

 Precalculus 

 College Algebra 

 Coll./AP Calculus AB 

 Coll./AP Calculus BC 

 Middle Sch. Physics 

 High Sch. Physics 

 College/AP Physics 

 High Sch. Statistics 

 Stat. & Probability 

 College/AP Statistics 

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STANDARDIZED TESTS

 SAT 

 ACT 

 GRE 

 GMAT 

 + Many more! 

LONG-TERM PLANNING

- "Get Ready" Programs for Upcoming Courses

- Youth Enrichment Programs 

​- Summer Projects

- Youth Launch Program for SAT/ACT: From a young age, accelerates organizational skills, study habits, overall academic knowledge, analytical proficiency, and test-taking adeptness

Through developing my own SAT Math prep materials, earning perfect math scores on the SAT and ACT, and over 18 years of tutoring, I specialize in turning complex ideas into clear, structured systems for students at any level. From youth enrichment programs to GMAT & GRE preparation, I help students build confidence, make consistent progress, and succeed at every stage of their academic journey.

Why Test Prep Matters — The Earlier, The Better

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Strong test preparation provides key advantages at any age or level.

These are highly cumulative tests that:

  • favor the prepared.

  • can be introduced at an early age.

  • help measure one's academic success.

  • are used for admission and scholarships

  • require prep that also reinforces one's schoolwork 

  • strengthens one's logical thinking

So, let's take advantage and start preparing!

The Student's Journey

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Math is often a love–hate relationship. When students don’t truly understand it, they tend to shut it off and stop improving. So how do we move from hesitantly copying notes in hopes of understanding them later to being engaged, confident, and ready to answer questions in class?

Structure and Accountability.

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Whether it’s 7th grade math, ACT preparation, or a long-term youth enrichment program, each student follows a structured system designed to manage their strengths, weaknesses, time, materials, and thought process in an organized and logical way. The goal is not simply to catch up with the material, but to move ahead by focusing on the “why” and the “how,” rather than memorizing the “what.”

​Math Courses

+ Physics

+ Statistics

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​Standardized Tests 

  SAT / ACT​

  GRE / GMAT

+ Much more

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Individual Programs

Progress Reports

Outlines

Homework

Study Guides

​​​​

K - 8

High School

College

Professional

Specialized

Beyond . . .

TC Math Prep stylized TC pi logo in black and green
Student using a tablet for online SAT, ACT, and math tutoring
Student taking notes during online SAT, ACT, and math tutoring session
Graduation caps symbolizing student success from SAT, ACT, and math tutoring
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Exams Covered​

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  • ACT, ASVAB, GED, HSPT, ISEE, ITBS "Iowa Test", NAPLEX, NCLEX, PERT, PreACT, PSAT, PTCB, SAT & SSAT

  • GMAT & GRE Math: Structured outlines, targeted homework, and ongoing practice. I maintain top-percentile performance in practice tests, including a perfect 170 in GRE Math.

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3. Vs. National Average → See comparison

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4. Testimonials
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5. Rates & Packages  See how consistency is rewarded

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1. Home  Main page

Online tutoring study materials
Online physics tutoring lesson showing rotational motion problems with angular speed, linear speed, and angular acceleration
Student receiving online SAT Math tutoring with a dry erase board lesson on function notation

18+ years online - over 1100 students

Long before online tutoring became mainstream

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