

Mario Triviño
If you want to talk about experiences with standardized testing, I'm your guy.
I've gone from being the student expected to get the highest score on the ICFES (the Colombian equivalent of the SAT) in my class—only to seriously underperform due to an anxiety attack—to the guy who barely prepared for the ACT, crushed the math section, but bombed the rest because of a lack of stamina. Eventually, I pulled it together and became one of the top 10 scorers nationwide on the ECAES for Physicists (a Colombian standardized test that measures the proficiency of college graduates).
What I learned on this journey is that mindset is just as important as knowledge, that practice beats theory, and that it’s better to have a deep understanding of a few key topics and strategies than a shallow familiarity with everything on the test.
That’s exactly what I’ve been teaching my students since 2014. I started as a GMAT tutor for one of the largest test prep companies in the world. There, I quickly expanded to tutoring for the GRE, SAT, ACT, and other exams. Since 2018, I’ve worked independently with students from Colombia, Canada, China, Germany, Korea, Indonesia, Mexico, Saudi Arabia, South Africa, Spain, the U.S., and more.
I’ve also developed tests for the Colombian Ministry of Education, writing questions for standardized high school exams.
This has made me deeply empathetic to the struggles people face when preparing for high-stakes tests—and I know I can help. My students appreciate my easygoing nature, my sense of humor (I think), and the science-backed learning strategies I share with them.
