Trusted by Families. Proven by Results.
15+ Years of Test Prep Excellence
For over 15 years, ThinkBIG Test Prep has helped ambitious students excel on high-stakes exams. Our proven, personalized approach raises scores, builds confidence, and opens doors to top private schools, elite high schools, and Ivy League universities. Families nationwide trust ThinkBIG to deliver results that last.
Why Families Choose ThinkBIG?
Proven Results That Matter
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SAT students improve by 200+ points on average
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Many achieve 1550+ (top 1% nationwide)
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Students gain admission to Ivy League universities and win major merit scholarships
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SSAT & ISEE students are accepted to the most competitive prep and private schools
Personalized Support
Every student learns differently. We design customized plans that build strengths, reduce stress, and give students the confidence to perform at their best.
Expert Instruction
ThinkBIG’s tutors combine top test scores with years of teaching expertise. More importantly, they connect with students — patient, encouraging, and committed to long-term success.
Flexible & Convenient
All sessions are live, online, and 1-on-1 — designed to fit into busy family schedules. Students get expert guidance; parents get peace of mind knowing their child is on track.
"I want to THANK YOU for all the help that you give to my grandson. He made terrific progress with his SAT scores which came as a result of your over and above effort and patience to make sure that he was prepared for each test. Again THANK YOU!"
— Mike D., Grandfather (Braintree, MA)
Our Premier Services
Personalized Test Prep for Top Schools & Colleges
Our Proven 4-Step Path to Success
A Simple, Personalized Process That Delivers Real Results
1. Understanding Your Student
We start with a free consultation to learn about your child’s strengths, challenges, and goals. From there, we design a personalized roadmap for success.
2. Crafting a Custom Strategy
Every student is different. We create a tailored curriculum that targets growth areas, reinforces strengths, and keeps your child motivated.
3. Expert 1-on-1 Online Tutoring
Live, flexible sessions fit seamlessly into your family’s schedule. Your child gets patient, focused support — right from home.
4. Achieving Real Results
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From 200+ point SAT score gains to standout essays that impress admissions officers, our students see measurable growth and gain acceptance to top schools.
Success Stories from our Families
Real Results. Real Admissions Wins.
"I just received my SAT scores from my tests in October and November. I am excited to tell you I got an incredible super score of 1520! I could not have done it without your guidance and thank you for sticking by me through the year!"
— CJ, Student (Georgetown, MA)
About ThinkBIG
Expert 1-on-1 Tutoring, Proven Results
Founded in Boston in 2009, ThinkBIG Test Prep has helped hundreds of students nationwide raise scores, gain confidence, and earn admission to top colleges and private schools.
Behind ThinkBIG is Glen Tartaglia, a veteran SAT/PSAT tutor with over 15 years of experience guiding students to success. Having worked with learners across the U.S., Glen combines deep content expertise with proven test strategies and a patient, encouraging approach.
As ThinkBIG grows, our commitment remains the same: personalized 1-on-1 support, measurable results, and caring guidance that reassures parents and empowers students.
