Search
Johnathan R.'s Photo

Cornell Grad for Math, Science & Premed Tutoring
Johnathan R.

5.0 (1 ratings)

2 hours tutoring

Your first lesson is backed by our Good Fit Guarantee
Hourly Rate: $50
Contact Johnathan

About Johnathan

Bio

Hi! My name is Johnathan, and I genuinely enjoy teaching. I graduated from Stuyvesant High School and Cornell University, where I studied Human Biology, Health & Society along with computer science, and I later completed the preclinical curriculum in the MD program at Stony Brook University. I’m currently pursuing a master’s degree in Computer Science at NYU, with a background in computational biology and biomedical research.

At Cornell, I served as a lead Teaching Assistant for...

Hi! My name is Johnathan, and I genuinely enjoy teaching. I graduated from Stuyvesant High School and Cornell University, where I studied Human Biology, Health & Society along with computer science, and I later completed the preclinical curriculum in the MD program at Stony Brook University. I’m currently pursuing a master’s degree in Computer Science at NYU, with a background in computational biology and biomedical research.

At Cornell, I served as a lead Teaching Assistant for introductory premedical chemistry and physics for three years. I also have more than seven years of private tutoring experience across math, science, programming, and standardized test preparation. I’ve worked with students ranging from middle and high school through college and premedical coursework, and I focus on making difficult material intuitive rather than relying on memorization.

Read more

Education

Cornell University
Biology, CS
Stony Brook University
MD
New York University
Masters

Policies

Schedule

Loading...

Sun

Mon

Tue

Wed

Thu

Fri

Sat

Johnathan hasn’t set a schedule.

We’re having trouble loading this schedule right now. Please try again later.

Approved Subjects

ACT Math

ACT Math

I have over 7 years of experience tutoring math and science students at the high school and college level. For ACT Math, I focus on making sure students are solid on the core algebra, geometry, and problem-solving skills while also learning how to move through the section efficiently. I help students identify the types of questions that slow them down and build a strategy around those weak spots. I try to keep sessions practical and focused on improving both accuracy and timing.
ACT Science

ACT Science

I graduated from Cornell with a strong background in biology, chemistry, physics, and data analysis, and I have several years of tutoring and teaching experience in science and quantitative subjects. ACT Science is largely about interpreting graphs, experiments, and scientific passages efficiently, and I help students develop a systematic approach to identifying what the question is actually asking. I can also help with pacing, data interpretation, experimental design, and eliminating misleading answer choices.
Algebra 1

Algebra 1

I have over 7 years of experience tutoring math and science students at the middle school, high school, and college levels. I help Algebra 1 students get comfortable with equations, inequalities, functions, graphing, exponents, and word problems while making sure the fundamentals actually make sense. I’m comfortable working with students who are struggling in the course as well as students who want to get ahead. I try to explain things in a straightforward way and adjust how I teach depending on what works best for each student.
Algebra 2

Algebra 2

I have over 7 years of experience tutoring math and science students at the high school and college level. I help Algebra 2 students with topics including functions, quadratics, polynomials, exponentials, logarithms, systems of equations, and other concepts that build toward precalculus. I focus on figuring out where a student is getting stuck and then working through problems until the underlying idea clicks. I’m also happy to help with homework, test preparation, or getting ahead in the course.
Biochemistry

Biochemistry

I work as a computational biologist in which I build methods for the analysis of complex genomic data. This requires complex interdisciplinary knowledge of biology and computer science especially. I am published in genomics and metabolism works.
Biology

Biology

I work as a computational biologist in which I build methods for the analysis of complex genomic data. This requires complex interdisciplinary knowledge of biology and computer science especially. I am published in genomics and metabolism works.
Biostatistics

Biostatistics

I have a background in biology, medicine, computer science, and biomedical research, and I’ve spent several years working with real biological and clinical datasets. My research work has involved statistical modeling, regression, hypothesis testing, probability, and interpreting results in a biomedical setting. I also have over 7 years of tutoring experience and am comfortable helping with introductory biostatistics, research methods, and data interpretation. I try to connect the statistics to the biological or medical question so the material feels less abstract.
C++

C++

I studied Computer Science at Cornell and am currently pursuing a master’s in Computer Science at NYU. I can help students with C++ fundamentals, object-oriented programming, pointers and references, memory management, data structures, algorithms, and debugging.
Calculus

Calculus

I have over 7 years of experience tutoring math and science students at the high school and college level. I help students with limits, derivatives, integrals, optimization, related rates, and other topics covered in introductory calculus and AP Calculus. I focus on helping students understand what the math is actually doing instead of just memorizing formulas and procedures. I’m happy to work through homework, prepare for exams, or go back and strengthen any algebra or precalculus skills that are getting in the way.
Chemistry

Chemistry

I have more than seven years of private tutoring experience in chemistry and related sciences. At Cornell, I served as a lead teaching assistant for three years, helping students work through difficult concepts and prepare for exams. My background also includes a 3.87 GPA from Cornell and completion of the preclinical curriculum at Stony Brook’s medical school. I focus on explaining chemistry clearly and helping students become more comfortable solving problems on their own.
College Counseling

College Counseling

I’ve personally gone through admissions for a selective undergraduate program, medical school, and a master’s program in computer science, and so I’m familiar with several very different application processes. I can help students with school selection, application strategy, personal statements, extracurricular positioning, and figuring out how to present their interests clearly. My background includes Cornell, medical school, and graduate study in computer science, which makes me especially comfortable working with students interested in STEM, premed, or interdisciplinary paths.
Computer Science

Computer Science

I am completing a master’s degree in computer science at NYU, with graduate coursework in algorithms, machine learning, artificial intelligence, operating systems, and programming languages. I also work professionally in bioinformatics, where I use programming and computational methods to analyze large biological datasets and build reproducible workflows. With more than seven years of tutoring and teaching experience, I help students understand the reasoning behind concepts rather than just memorize syntax. I can support introductory computer science, Python, Java, C++, algorithms, data structures, debugging, and coursework.
Data Analysis

Data Analysis

I have several years of professional experience working with real-world datasets in bioinformatics and computational biology, along with a background in Computer Science from Cornell and graduate study at NYU. I regularly use Python and R for data cleaning, visualization, statistical analysis, and interpreting complex datasets. I can help students with pandas, NumPy, matplotlib, tidyverse, exploratory data analysis, and working through data-focused assignments or projects. I focus on helping students understand how to approach a dataset and draw meaningful conclusions from it, rather than simply following a set of commands.
Data Science

Data Science

My background combines computer science, statistics, and several years of professional work in computational biology and bioinformatics. I have experience using Python and R to analyze large biological datasets, build statistical models, develop computational pipelines, and communicate results through clear visualizations. I can help with data science fundamentals including data preprocessing, exploratory analysis, regression and classification, model evaluation, feature engineering, and introductory machine learning. I especially enjoy helping students connect the underlying statistics and computer science to what their models are actually doing.
Data Structures

Data Structures

I studied Computer Science at Cornell and am currently pursuing my master’s in Computer Science at NYU. I have experience with core data structures and algorithms including arrays, linked lists, stacks, queues, trees, heaps, hash tables, and graphs, along with recursion and Big-O analysis. I can help students understand both the underlying concepts and how to implement them in languages such as Python, Java, and C++. I especially enjoy helping students work through difficult programming assignments and develop a more systematic approach to problem solving.
Discrete Math

Discrete Math

I studied Computer Science at Cornell and am currently pursuing my master’s in Computer Science at NYU. I have a strong background in the mathematical foundations of computer science, including logic, sets, functions, combinatorics, induction, recurrence relations, graph theory, and basic proof techniques. I can help students develop the reasoning needed to approach proofs and discrete mathematics problems systematically. I also make a point of showing how these ideas connect to algorithms, data structures, and computer science more broadly.
Genetics

Genetics

I studied Human Biology at Cornell and have several years of professional experience working in computational biology and genomics research. My work has involved analyzing genetic and genomic data, including mutations, copy-number alterations, gene expression, and other molecular features of disease. I can help students with Mendelian genetics, molecular genetics, inheritance, gene regulation, genomics, and related biology coursework.
Java

Java

I studied Computer Science at Cornell and am currently pursuing a master’s in Computer Science at NYU. I can help students with Java fundamentals, object-oriented programming, inheritance, interfaces, recursion, data structures, algorithms, and debugging. I have experience working across several programming languages and can help students understand not only Java syntax but also the broader computer science concepts behind their assignments. I work especially well with students in introductory and intermediate college computer science courses.
Linux

Linux

I studied Computer Science at Cornell and am currently pursuing a master’s in Computer Science at NYU. I have experience using Linux for programming, research computing, command-line workflows, remote systems, and software development. I can help students with the shell, file permissions, processes, package management, SSH, scripting, environment setup, and general Linux troubleshooting.
Machine Learning/ AI

Machine Learning/ AI

I am currently pursuing a master’s in Computer Science at NYU and have professional experience applying computational and statistical methods to problems in bioinformatics and genomics. My background includes machine learning, data analysis, model evaluation, feature engineering, and working with high-dimensional biological datasets. I can help with topics including regression, classification, clustering, model selection, overfitting, cross-validation, and introductory neural networks.
MCAT

MCAT

I scored a 517 on the MCAT on my first attempt, including a 131 in Chemical and Physical Foundations and a 130 in Biological and Biochemical Foundations. I graduated from Cornell with a degree in Human Biology, Health, and Society and completed two years of preclinical medical training at Stony Brook Medicine. I especially enjoy teaching the science sections of the MCAT and helping students connect chemistry, physics, biology, and biochemistry concepts to passage-based reasoning. With more than seven years of tutoring experience, I focus on efficient content review, data interpretation, test strategy, and detailed analysis of missed questions.
Personal Statements

Personal Statements

I graduated from Cornell, attended medical school, and am currently pursuing a master’s degree at NYU, and so I’ve had experience writing personal statements for several different types of applications. I’m especially comfortable helping with college, graduate school, premed, and medical school essays. I can help students organize their ideas, develop a clear narrative, and revise their writing while keeping it sounding like their own voice.
Physics

Physics

I served as a lead Teaching Assistant at Cornell for introductory physics courses taken by premedical and science students. I have several years of experience helping students with mechanics, forces, energy, momentum, rotational motion, fluids, electricity, circuits, and other introductory physics topics. My approach is to help students build a strong conceptual understanding first and then translate that understanding into a clear problem solving strategy. I also have extensive private tutoring experience with both high school and college students.
Precalculus

Precalculus

I have over 7 years of experience tutoring math and science students at the high school and college level. I help students with functions, trigonometry, exponentials and logarithms, polynomial and rational expressions, and the other topics that come up throughout precalculus. I try to make the material less abstract by breaking problems into smaller steps and showing how the different ideas connect. I can help with homework, exam prep, or building a stronger foundation before calculus.
Python

Python

I studied Computer Science at Cornell and am currently pursuing a master’s in Computer Science at NYU, with several years of experience using Python in academic and research settings. My work in computational biology and bioinformatics has involved Python for data analysis, scientific computing, algorithm development, and building reproducible research workflows. I tutor students in Python fundamentals, object-oriented programming, data structures and algorithms, debugging, and more advanced problem solving. My goal is to help students become comfortable writing and reasoning through code independently, not just finish a single assignment.
R

R

I use R professionally for bioinformatics, statistical analysis, data visualization, and reproducible research workflows. At NYU Langone and the New York Genome Center, I worked with large biological datasets, built analysis pipelines, fit statistical models, created publication-ready figures, and developed interactive Shiny applications. I also have more than seven years of tutoring and teaching experience, so I focus on making both the code and the underlying logic easy to understand. I can help with beginner R, tidyverse, ggplot2, data cleaning, statistics, debugging, and research projects.
Regents

Regents

I help students prepare for New York State Regents exams by reviewing core concepts, identifying knowledge gaps, and practicing exam-style questions. I served as a lead teaching assistant at Cornell for three years and have more than seven years of private tutoring experience across science, math, and standardized test preparation. I tailor each session to the student’s course, current level, and upcoming exam, with an emphasis on clear explanations, stronger problem-solving skills, and effective test-taking strategies.
SAT Math

SAT Math

I have over 7 years of experience tutoring students in math and science at both the high school and college level. I enjoy SAT Math in particular because a lot of improvement comes from learning how to approach the problems efficiently and recognizing the patterns the test uses. I work with students on both the underlying math and test-taking strategy, with extra attention to the topics they struggle with most. My goal is to make the questions feel much more manageable by test day.
SHSAT (NY HS admissions)

SHSAT (NY HS admissions)

I scored a 609 on the SHSAT and later graduated from Stuyvesant High School, giving me firsthand experience with both the exam and the specialized high school admissions process. I also spent two summers teaching SHSAT preparation at Khan’s Tutorial in small, structured classrooms focused specifically on the exam. In addition to that classroom experience, I have more than seven years of private tutoring experience. I help students improve math, reading comprehension, grammar, pacing, and test strategy through targeted practice and detailed error review.
Statistics

Statistics

I have several years of experience working with statistics and data analysis through biomedical research, along with over 7 years of tutoring experience. I’ve used statistics in real research settings for things like regression, hypothesis testing, probability, and working with large datasets. I’m comfortable helping with introductory and college-level statistics, whether it’s homework, exam prep, or understanding the concepts more clearly. I try to explain things in a practical way and focus on why a method works, not just which formula to use.
Prealgebra
Trigonometry
Johnathan R.'s Photo

Questions? Contact Johnathan before you book.

Still have questions?

Contact Johnathan

Ratings and Reviews

Rating

5.0 (1 ratings)
5 star
(1)
4 star
(0)
3 star
(0)
2 star
(0)
1 star
(0)

Reviews

Absolutely Outstanding Chemistry Tutor! Highly Recommended!

Jonathan is an exceptional tutor who made preparing for the Chemistry Regents genuinely enjoyable. His mastery of the material is unmatched. He is patient and makes certain that every topic is fully understood before moving on. Jonathan doesn’t just teach—he ensures full comprehension and builds confidence. Thanks to his guidance, chemistry went from intimidating to empowering. I highly, highly recommend Jonathan to anyone looking for a top-tier tutor who truly cares about their students' success!

Perry, 1 lesson with Johnathan
Hourly Rate: $50
Contact Johnathan