My Story
I'm Greg Sansolo, a New York City high school math teacher, former carpenter, former machinist, and former network engineer. I've had a lot of careers. Every one of them taught me something, and none of them were handed to me.
I wasn't a good student growing up. I struggled through K–12 in ways I couldn't explain at the time. Not because the material was beyond me, but because my brain worked differently and nobody knew it yet. I went to college and flunked out. After that, I worked as a cook. Long hours, low pay, no clear path forward. Eventually I enrolled at Westchester Community College, put in the work, and excelled academically. I transferred to Columbia University, but couldn't afford to stay.
So I took a break and went to work. That break lasted about two and a half years. I interned in IT at Hartford Healthcare, got hired full-time as a Help Desk Analyst, earned my CCNA after a week of studying, and got myself promoted to Network Engineer. I saved enough to go back, and right before I returned to Columbia in the fall of 2018, I was finally diagnosed with ADHD at 26 years old. I started medication and began therapy for the first time. An informal autism diagnosis came years later.
That diagnosis re-framed my entire life. Every classroom I'd struggled in, every job where I'd felt like I was working twice as hard as everyone around me just to keep up, it suddenly made sense. But here's the thing: I'd already proven I could do it. Not because I was gifted, but because I was persistent, I practiced relentlessly, and I asked for help whenever I needed it. Getting medicated and learning real coping strategies didn't change who I was. It just leveled the playing field a little. I went back to Columbia and graduated with a degree in Computer Science in the middle of a pandemic.
After graduating, I felt directionless. I'd built a résumé full of accomplishments, but none of it pointed somewhere that felt right. I pursued carpentry and machining for a while, good, honest work that I enjoyed, before eventually finding my way to the classroom. And that's where things finally clicked in a different way.
I currently teach Algebra 1, Pre-Calculus and Calculus at a Title I public school in New York City, where I work every day with students across a wide range of ability levels, language backgrounds, and learning needs. Some of my students are exactly where I was: smart enough but struggling, undiagnosed, convinced they're just "not a math person." I know better, because I was that kid. The difference between the student who gives up and the student who breaks through is almost never talent. It's effort, the right support, and someone who believes the material is learnable because they learned it the hard way themselves.
I offer private tutoring in:
General academic support, K–12 Math
Calculus I & II
SAT Math prep
NYS Regents exam prep: Algebra 1, Geometry, Algebra 2
Foundational math skills for young learners
Support for students with disabilities
Remedial math for students who need to rebuild from the ground up
I've also developed my own comprehensive SAT Math prep course from the ground up, built from my experience teaching and tutoring, not pulled from a test prep company's playbook. I’ve built my own curriculum for Pre-Calculus and Calculus using James Stewart’s textbook series as a base.
Whether your child is struggling to keep up, preparing for a high-stakes exam, or just needs someone who can explain things a different way, I can help. I've worked with students who are years behind grade level and students pushing into college-level math, and I bring the same patience and directness to both. And if your child has a disability, diagnosed or not, I get it. Not from a textbook, but from living it.
Feel free to reach out to discuss your child's needs. No pitch, no pressure, just a conversation about how I can help.
