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Northwestern Engineering Grad for Math, Science, Spanish Tutoring
Justin S.

5.0 (5 ratings)

12 hours tutoring

Your first lesson is backed by our Good Fit Guarantee
Hourly Rate: $70
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Response time: 13 hours

About Justin

Bio

I love the confidence that comes from learning something new, and I tutor because I want students to feel that same confidence. My job is to make complex ideas clear, build strong fundamentals, and help students develop a toolkit they can use under pressure.

I’m a Northwestern University Environmental Engineering graduate (B.S., 2024) with an SAT Math 800 and professional experience applying math, science, and problem-solving to real-world projects. I’m fluent in Spanish and studied for...

I love the confidence that comes from learning something new, and I tutor because I want students to feel that same confidence. My job is to make complex ideas clear, build strong fundamentals, and help students develop a toolkit they can use under pressure.

I’m a Northwestern University Environmental Engineering graduate (B.S., 2024) with an SAT Math 800 and professional experience applying math, science, and problem-solving to real-world projects. I’m fluent in Spanish and studied for six months in Buenos Aires, which deepened both my language skills and my belief in immersion as the fastest path to progress.

I tutor Math through Calculus (Pre-Algebra, Algebra I/II, Geometry, Pre-Calculus, non-AP Calculus and AP Calc AB support), Biology/AP Biology, Environmental Science/APES, Spanish I–III and AP Spanish, plus SAT/ACT Math & Science and NYC Regents prep. In math, we establish what skills to add to your arsenal, when to use them, and how to use them correctly- with the ultimate goal of making math make sense! In science, we connect topics to the world you live in so they stick, and piece concepts together step-by-step. we use an immersion mindset with steady listening, reading, speaking, and writing so the language becomes intuitive and not just memorized rules.

My approach is patient, clear, and structured. We move at your pace without skipping fundamentals. I break problems into repeatable steps, model the process, and then hand you the pen. Each session starts with a short diagnostic or warm-up, a focused mini-lesson, guided practice, and—if you’re preparing for a test—a brief timed set. Afterward you receive 2–4 targeted action items, 1–2 short drills, and an updated error log with fix-it notes so mistakes don’t repeat.

I care about confidence and mastery as much as grades. Tutoring is not only about understanding today’s material. It’s about building the curiosity that lets students push deeper into whatever niche interests them.

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Education

Northwestern University- McCormick School of Engineering
Environmental Engineering

Additional Languages

Spanish

Policies

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Approved Subjects

ACT Math

ACT Math

I’m a 2024 Environmental Engineering graduate from Northwestern University who tutors math with an emphasis on mastering fundamentals. I earned perfect scores in both ACT and SAT Math and bring a clear, efficient approach to raising scores. I teach the content—algebra, geometry, trigonometry, probability/statistics—and the tactics that matter: pacing, back-solving, plugging in numbers, and calculator strategy. We will use targeted drills to fix weak spots quickly. Students finish with repeatable strategies for practice tests and exam day.
Algebra 1

Algebra 1

I’m a 2024 Northwestern Environmental Engineering graduate who tutors Algebra I, II and Pre-Algebra with a focus on learning fundamentals. I teach linear equations and inequalities, functions, systems, graphing, polynomials and factoring, exponents, radicals, and word-problem translation with clear, step-by-step methods. I diagnose gaps quickly, reinforce core skills, and build durable problem-solving habits. Students leave sessions with targeted practice and strategies for quizzes, unit tests, and finals.
Algebra 2

Algebra 2

I’m a 2024 Northwestern University Environmental Engineering graduate who tutors Algebra I, II and Pre-Algebra with a focus on learning fundamentals. I teach linear equations and inequalities, functions, systems, graphing, polynomials and factoring, exponents, radicals, and word-problem translation with clear, step-by-step methods. I diagnose gaps quickly, reinforce core skills, and build durable problem-solving habits. Students leave sessions with targeted practice and strategies for quizzes, unit tests, and finals.
Biology

Biology

I’m a 2024 Environmental Engineering graduate from Northwestern University with extensive training in biology. My background includes molecular and cellular biology, biochemistry, bio-nanotechnology, environmental microbiology, and graduate-level environmental biotechnology; I also excelled in AP Biology and high-school genetics- finishing at the top of my class. I teach core topics—cell structure and function, genetics, metabolism, ecology, evolution, experimental design, and data analysis—with clear, step-by-step explanations and targeted practice. I identify gaps quickly, build effective study habits, and prepare students for labs, quizzes, and biology material for any skill level.
Calculus

Calculus

I’m a Northwestern University Environmental Engineering graduate (2024) with extensive experience in calculus and differential equations. I finished at the top of AP Calculus AB in high school and advanced directly to multivariable differential and integral calculus as a freshman in college. I support Precalculus, AP Calculus AB/BC, and college Calculus I–III with clear, step-by-step explanations and practice-driven problem solving. I identify gaps quickly, reinforce core concepts, and prepare students effectively for quizzes and exams.
Environmental Science

Environmental Science

I hold a B.S. in Environmental Engineering from Northwestern University (2024) with hands-on experience in water/wastewater treatment, stormwater modeling (EPA SWMM), and green infrastructure design. I tutor AP Environmental Science and introductory college courses, translating core topics—ecology, biogeochemical cycles, energy, pollution, climate, and policy—into real-world calculations and case studies. My expertise includes unit analysis, mass and energy balances, data interpretation, and lab methods, which I use to strengthen FRQs and graph/data questions. Students also get targeted practice with released AP items and concise reference sheets tailored to their weak areas.
Genetics

Genetics

I’m a Northwestern University Environmental Engineering graduate (B.S., 2024) who tutors high-school genetics within AP Biology and introductory biology. My background includes coursework in Environmental Biotechnology, Environmental Systems & Processes, and an Environmental Laboratory, which covered fundamentals of DNA/RNA, enzymes, and microbial growth relevant to bioprocesses. I focus on Mendelian and basic non-Mendelian patterns, pedigrees, Punnett squares, Hardy–Weinberg reasoning, and chi-square testing for inheritance. Lessons emphasize clear procedures, careful calculations, and targeted practice with released AP items and concise reference sheets.
Prealgebra

Prealgebra

I’m a 2024 Northwestern University Environmental Engineering graduate who tutors Algebra I, II and Pre-Algebra with a focus on learning fundamentals. I teach linear equations and inequalities, functions, systems, graphing, polynomials and factoring, exponents, radicals, and word-problem translation with clear, step-by-step methods. I diagnose gaps quickly, reinforce core skills, and build durable problem-solving habits. Students leave sessions with targeted practice and strategies for quizzes, unit tests, and finals.
Precalculus

Precalculus

I’m a 2024 Northwestern University Environmental Engineering graduate who tutors Precalculus with an emphasis on mastering fundamentals. I cover functions and transformations, trigonometry, exponentials/logarithms, sequences/series, and analytic geometry with clear, step-by-step methods. I diagnose gaps quickly and assign targeted practice so skills stick. Students leave ready for quizzes, unit tests, and the jump to calculus.
SAT Math

SAT Math

I’m a 2024 Environmental Engineering graduate from Northwestern University who tutors math with an emphasis on mastering fundamentals. I earned perfect scores in both ACT and SAT Math and bring a clear, efficient approach to raising scores. I cover the tested content—algebra, advanced math, problem solving/data analysis, and geometry/trig—along with effective exam strategies. We’ll use targeted drills and timed practice to build speed and accuracy. Students leave with a simple, repeatable game plan for test day.
Chemistry
Spanish
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Response time: 13 hours

Ratings and Reviews

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Reviews

Professional, Kind, and Incredibly Effective

Justin S. is an exceptional tutor. He is professional, kind, and incredibly effective. He came prepared, started by asking what success would look like for me, and then tailored the session to my goals and pace. He’s patient without ever wasting time, checks for understanding regularly, and explains concepts in clear, approachable language. I really appreciated his organization: he set an agenda, kept us on track, and wrapped up with concise next steps, along with resources to reinforce the lesson. Communication was excellent before and after the session, and scheduling was easy. I left feeling confident and with a concrete plan for what to do next. I couldn’t recommend Justin more; five stars, and I have already booked my second session!

Ethan, 1 lesson with Justin

Professional, Passionate, Personable

I have never booked anyone for tutoring for the simple fact that I believed it wouldn't be that useful for me as I feel like there is just too much I don't know plus the math anxiety many of us deal with (yes, it's a real thing ) however I decided to give it a shot because I really want to understand calculus better. I've had some sessions with Justin and I feel very at ease, not only did he come prepared with a lesson plan, try to work with you at your pace, encourages you but he really goes deep in explaining things for you to understand the concept of calculus. He is patient and he very adaptive in which he will use different ways/examples to help you understand better. Also he creates an atmosphere in which you are always able to ask questions without feeling any sort of anxiety. As he goes through the topics he makes sure to check in with you to ensure you don't have any questions. You can genuinely tell he is passionate about those he tutors and cares about your progress, I really appreciate the fact that he will prepare materials before the session and send you files of things that was worked on during the session. Thank you Justin!

Kathleen, 2 lessons with Justin
Hourly Rate: $70
Response time: 13 hours
Contact Justin