Elementary Math
K–5Whole numbers, basic operations, fractions, decimals, and an introduction to geometry. Building a strong numerical foundation before symbolic algebra.
Mathematics Tutor — New York City
Gabriel A. A. Rivera
One-on-One math tutoring from elementary through trigonometry — each student is different; sincerely, a former student!
Available for sessions!
Subjects
:: COVERED.SUBJECTS // 06 ENTRIES
Pre-Algebra
Gr. 6–8Integers, ratios, proportions, and first-contact with variables and equations. The bridge between arithmetic and formal algebra.
Algebra I
★ FocusLinear equations and inequalities, systems of equations, polynomials, factoring, and an introduction to quadratics. Core high-school math.
Algebra II
★ FocusFunctions (quadratic, rational, radical), logarithms, complex numbers, sequences and series, and conic sections.
Geometry
Gr. 9–11Formal proofs, triangle congruence and similarity, circles, area and volume, coordinate geometry, and geometric transformations.
Trigonometry
Gr. 10–12Trigonometric functions and the unit circle, identities, inverse trig, graphs, and the laws of sines and cosines.
About
:: BIOGRAPHY
Hi, I'm Gabriel Rivera — an undergraduate student in engineering who's spent the last few months helping students from elementary school through high school get comfortable with math instead of dreading it. I got into tutoring because I love the moment a concept finally clicks, and I've built my approach around reaching that moment faster: clear explanations, plenty of practice, and a lot of patience.
Algebra is where I focus most of my energy, because it's the foundation everything else is built on — once a student feels steady solving equations and working with variables, geometry, trigonometry, and beyond all become a lot less intimidating. I went through these same classes myself not long ago, so I have a good sense of where students tend to get stuck, and I try to meet them there instead of just repeating the textbook explanation.
I offer both in-person sessions around the Bronx-Manhattan area and remote sessions over video call, with flexible scheduling for steady weekly support, test prep, or a one-time review before a big exam. If you're not sure where to start, reach out — an assessment session is a low-pressure way to figure out a plan together.
6
Subjects
K–12
Grades
NYC
Location
Contact
:: CONTACT
Schedule an assessment session today:
An assessment session is a relaxed, no-pressure first step — we'll talk through where a student is at, what's felt tricky lately, and what a plan forward could look like. No homework, no obligation — just a starter for us to get warmed up. Call, text, or email me to find a time that works!