Search
Mary S.'s Photo

Tutor on Multi-Disciplines (LSAT, finance, math, GMAT/GRE/SAT …)
Mary S.

5.0 (95 ratings)

114 hours tutoring

Your first lesson is backed by our Good Fit Guarantee
Hourly Rate: $300
Contact Mary

About Mary

Bio

Hello! I am a tutor on multi-disciplines (LSAT, finance, math, SAT, data science, …), w/ global working exp @multiple Global Fortune 100 companies, investment bank @top 5, and math/statistics/computer-science/finance teaching as a faculty at college and R1 research Univ. I enjoy these subjects & teaching.

Click on links for tutoring subjects.

LSAT is learnable. It has a clear pattern. I am good at questions designed for 170+, and problems w/ nuances and perspectives missed easily by...

Hello! I am a tutor on multi-disciplines (LSAT, finance, math, SAT, data science, …), w/ global working exp @multiple Global Fortune 100 companies, investment bank @top 5, and math/statistics/computer-science/finance teaching as a faculty at college and R1 research Univ. I enjoy these subjects & teaching.

Click on links for tutoring subjects.

LSAT is learnable. It has a clear pattern. I am good at questions designed for 170+, and problems w/ nuances and perspectives missed easily by students.

In practice, I constantly scored above 98% on real LSAT. I improved most when practicing individual problems w/ a focus on why I chose a wrong AC — I hence eventually gained intuitive sense on LSAT pattern. One key to LR/RC is to see the “trap” designed into LSAT problems, to gain the LSAT sense, and to recognize patterns.

I have helped LSAT students
1) for their beginning of the journey, where my tutoring focused on the structure of the exam, formal logic, question types, and so on;
2) for their later prep when performance peaked, where my tutoring focused on identifying weak areas, correcting misunderstandings on logic (e.g. sufficient/necessary condition), improving quality of thinking, reviewing and revising study plan, drilling on recognizing patterns, and so on;
3) for their final stage when they hoped to get out one or two more points for their performance, where my tutoring focused on practicing together on individual problems, explaining why the correct answer choice is correct and more important why the wrong ones are wrong, and providing additional insights when they already saw the answer key but still wanted to see the “why”;
4) testing strategies to maximize the potential.

My tutoring is personalized and one approach is problem-based. If you scored 160, then tutoring on individual problems to broaden perspectives, to gain additional insights are effective to improve. If after the key and explanations, you still look for a deeper understanding, or you aim for 170+, I hope to help you.

Read more

Education

University of Chicago (MBA courses, and PhD courses on Econ/Finance)
Other

Additional Languages

Mandarin Chinese

Policies

  • Hourly Rate: $300
  • Rate details: Rates vary for diff level math and diff topics (finance from $150/hr). A 50% fee is charged for cancellation within 36 hrs; or a full fee if within 12 hrs or no-show.
  • Lesson cancellation: 36 hours notice required

  • No background check

  • Your first lesson is backed by our Good Fit Guarantee

Schedule

Mary hasn’t set a schedule.

Approved Subjects

ACT Math

ACT Math

Besides ACT/SAT, I tutor LSAT (for law school ). The RC Reading Comprehension and LR Logical Reasoning on LSAT are much harder than RC on ACT/SAT. Additionally, my math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively.
Algebra 1

Algebra 1

My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I
Algebra 2

Algebra 2

My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I
CFA

CFA

Here on WyzAnt, I have worked with college/grad/MBA/EMBA/PhD/SIE/FRM/CIMA students (from Harvard, Columbia, and other top business/finance programs), and got 5-stars. Most of my tutoring here have been on finance (in addition to econometrics, data science, etc). I worked at the investment bank division at Bulge Bracket banks. These are positions and places that people hope to get in by success on the CFA exams. Also I have thoroughly studied topics on CFA. I got an A on the final exam on Investment, an MBA course from Univ Chicago Booth. And the topics on this course are one crucial component on CFA that many CFA test takers seek help. You may further review my qualifications on finance by clicking on the finance link.
Chinese

Chinese

Hello, Welcome! Now special rate for daily life conversational Mandarin (no dialect accent), $52/hr. Short session of 15min is available, to help established students seize all possible chances to practice the language, and to help new students practice the language with a different speaker. (Wyzant can list only one rate; the rate listed is for math on standard exams. Kindly make a rate inquiry for Chinese/Mandarin tutoring.) || I specialize in tutoring 1) Mandarin listening and speaking; 2) reading and writing in Chinese; 3) college Chinese placement exams; 4) HSK; 5) Chinese communications in business setting; and 6) working in China in specialized industry, including fields of music, film, art, high-end food, sports, entertainment, marketing, logistics, sustainability, HR, higher-ed, legal, medicine, VC, FDI, finance. A few highlights about my qualifications to tutor Mandarin/Chinese: || Standard Mandarin speaking, no dialect accent (Grew up & educated in Beijing) || Years of experience teaching Chinese/Mandarin as a second language || Success of students in college placement exam, HSK, and business communication || Top skills in Chinese from having studied at top schools in China, since elementary school, middle/high school, and college || Well educated in both China and US on multiple disciplines, including math/stat, software/programming, econ/finance, data mining/machine learning, law, and more || Familiar with vocabulary and grammar required by HSK exams on each level || Teaching experience gained from a side work on the math course (in English) at the college level in US, as well as on other topics (including Chinese/Mandarin) thru various channels || Skills of communication with clarity gained from working at the top research institute and Global Fortune 100 companies || I have an effective way to teach 4 tones of Pinyin needed to communicate well in Mandarin, from my background connected with various disciplines, including the music. || Finally, as a non-native Eng
Computer Programming

Computer Programming

I have over 10 years industry experience on software development at global fortune 100 companies, using various programming languages (including C, C++, SQL, Unix Shell scripts, Perl, PL/SQL), on daily basis. Also, I am familiar with MATLAB, R coding. Additionally, data analytics work using SQL, various databases, say Oracle, Toad, Informix, Sybase, Netezza, etc, on daily basis. Also experience on GIS with multimedia database. Plus, CS course on Algorithm and Data Structure, say links, trees, stacks, and so on. If you need help today or tomorrow, I will do my very best to make it happen.
Data Science

Data Science

Here on WyzAnt, I have worked with multiple college students on data science and got 5-stars. I am a math major with over 10 years industry experience in data analytics on daily basis, with global fortune 500 companies. In addition, I audited MBA level data mining course and have done data science projects including topics in linear regression, logistic regression, classification, cluster, networks, factors (PCA), text mining, and so on. I further keep myself up to date on most recent development in the field of data science and machine learning by reading academic papers. I hope my background can help your need in data science! Math major w/ data analytics for over 15 years together with ML exposure.
Discrete Math

Discrete Math

As a math major with both BS and MS degrees in math, I studied multiple courses on discrete math, including Logic, Linear Algebra, Advanced Algebra, Graph theory, Set Theory, and so on. I teach Algebra at a college. My teaching emphasizes the “why” in addition to demonstrating the steps to solve the math problems. I earned a perfect quant score on my first official attempted GMAT (total 96 percentile; GMAT is for MBA at business school, its quant section covers various math topics up to high school). When in high school, I participated various math competitions and won the prize, also won the district level selection for international math Olympiad. Math can be easy for everyone, and everyone can do well on math. The key is to master the definition. My math tutoring is not only for the school work and exams, math skills with an emphasis on mastering the concept, but also focuses on the quality of thinking. I gained tutoring experience and insights from helping my peers at school and from my side work as a math faculty at a college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Discrete Math, Logic and Critical Thinking, and so on I teach at the college, one math course I teach is to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. I hope my tutoring make a long-term impact on my students—the study habits, the confidence, the love of learning.
Econometrics

Econometrics

I am a math major with BS and MS degrees. Here on WyzAnt, I have worked with multiple college/grad/MBA/after-grad students on econometrics, statistics, and data science (in addition to finance/investment, etc). On Business Statistics, an MBA core course audited at Univ of Chicago Booth (business school), my final exam got an almost perfect score, 172 on the scale of 178. Also, I am a math major, and have done projects on statistical regression and data mining, including topics on sample & population, estimating population estimators, properties of estimators (unbiased, consistency, efficiency, BLUE), residual analysis, Gauss-Markov assumptions, simple/multiple linear regression, logistic regression, OLS, hypothesis test, t-test, F-test, p-value, instrument variables, fixed effects, TSLS, model selection, model comparison, predicative models, classifications, KNN, Cluster, PCA, and so on. In addition, I took PhD level econometrics at Univ of Chicago, including topics (matrix forms) such as MLE, Bayesian Inference, lag operator calculus, unit roots testing, stochastic process, time series, GMM. And I have done intensive readings on academic papers on finance. Hope my background can help your study!
Elementary Math

Elementary Math

My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I
Finance

Finance

Over 30 hours on WyzAnt on investment, capital markets, risk management tutoring. Investment/Capital Markets/Derivatives/Time Value of Money/Portfolio Theory/Risk Management/Exchange Rates are my most commonly tutored finance topics. Here on WyzAnt, I have worked with college/grad/MBA/EMBA/PhD/SIE/FRM/CIMA students (from Harvard, Columbia, and other top business/finance programs), and got 5-stars. Most of my tutoring here have been on finance (in addition to econometrics, data science, etc). For Finance, I tutor fixed income, bond valuations, financial derivatives, derivatives pricing (futures, forward, option, swap, etc), portfolio mathematics/management, investment, capital markets, risk management, and advanced topics on quant finance say factor modeling, FF3F, asset pricing, continuous-time modeling, interest rate models, stochastic calculus, and so on. As a math major (perfect quant score on first official attempted GMAT, 96 percentile), I thoroughly studied John Hull’s book “ Options, Futures, and Other Derivatives“, as well as BKM’s “Investment”, both are text books used by business schools, with John Hull’s even standard interview bible on Wall Street. I got an A on the final exam on Investment, MBA course at Univ of Chicago Booth (a class of hundreds of students from nationwide, and many from around the world). The topics of the course include capital markets, fixed income, bond pricing, interest rates, spot rates, forward rates, foreign exchange rate, PV Present Value, NPV Net Present Value, DCF, CAPM, APT, minimum variance portfolio, efficient frontier, asset allocation/mean variance analysis, portfolio mathematics, no arbitrage, risk-neutral pricing, binomial option pricing model, options, futures, and other derivatives, and so on. Additionally, I am interested in tutoring corporate finance and international finance. For Corporate Finance, I would like to help on time value of money, bond and bond valuations, risk and return, various interest rates, and more. For international finance, I wou
Geometry

Geometry

My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I
GMAT

GMAT

Besides GMAT, I tutor LSAT (for law school ). The RC and LR on LSAT are much harder than RC and CR on GMAT. Additionally, my math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively.
GRE

GRE

Besides GRE, I tutor LSAT (for law school ). The RC and LR on LSAT are much harder than RC on GRE. Additionally, my math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively.
Logic

Logic

With a math education, I have been well trained in logic, as well as from courses on automata theory. In addition, my over 15 years industry experience in software development has been full of logic, “and”, “or”, “not”, and so on. Particularly, I practiced LSAT, whose LR Logical Reasoning section is all about formal logic, a topic I have thoroughly studied and mastered. I am confident to help you on this area!
LSAT

LSAT

Hello! I have helped LSAT students 1) for their beginning of the journey, where my tutoring focused on the structure of the exam, formal logic, question types, and so on; 2) for their later prep when performance peaked, where my tutoring focused on identifying weak areas, correcting misunderstandings on logic (e.g. sufficient/necessary condition), improving quality of thinking, reviewing and revising study plan, drilling on recognizing patterns, and so on; 3) for their final stage when they hoped to get out one or two more points for their performance, where my tutoring focused on practicing together on individual problems, explaining why the correct answer choice is correct and more important why the wrong ones are wrong, and providing additional insights when they already saw the answer key but still wanted to see the “why”; 4) on testing strategies to maximize the potential. LSAT is learnable. It has a clear pattern. I am good at helping on LR and RC questions designed for 170+, and problems with nuances missed easily by students. In practice, I constantly scored above 98% on real LSAT exams. I improved most by practicing individual problems with a focus on understanding why I chose the wrong answer choice and I hence eventually gained intuitive sense on LSAT pattern. For the hard to improved RC section, I practiced by focusing on key words and relationships among sentences, paragraphs, and the structure of the passage and the structure of reasonings. Eventually I enjoyed reading LSAT RC passages. One key to LR and RC is to catch the “trap” designed into LSAT problems, to gain the LSAT sense, and to recognize the pattern. My tutoring is personalized and one approach is problem-based. If you already scored above 160, then tutoring on specific problem and broadening the perspective with additional insights are effective to improve. Accuracy comes first. Speed, and top score come naturally after a good understanding on the LSAT problems. If after the key and explanations, you still would like a deeper un
MATLAB

MATLAB

Within days less than a week I immediately mastered MATLAB when one graduate course needed to use MATLAB to do the homework. I have used MATLAB in econ and econometric courses, including matrix methods on linear regression, quantitative model testing, MC simulation, plotting/graph, and so on. I actually prefer MATLAB to R, when the two are often used in similar fields; MATLAB is more reliable, hence more manageable and easier for people with no programming background. Prior to MATLAB I had intensive experience with Global Fortune 100 companies using various programming languages, which helped me to get on the right direction when mastered MATLAB. I would like to transfer my expertise to help your need.
Prealgebra

Prealgebra

My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I
Precalculus

Precalculus

I teach math including PreCalc at a college. My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confi
Probability

Probability

I teach math including Probability at a college. My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on math. My teaching varies by student. I am patient, and willing to learn about each student, and their specific backgrounds in the topics studied. I am interested in helping students to learn according to their appropriate level on math. With my education in math and my own solid grasp on math concepts, I am able to see how one math problem can be solved from multiple alternative ways, and hence adjust the way to explain the problem to the appropriate level right for the student.
R

R

R is easy to be picked up, however it can also be very confusing as it is very flexible. I have over 15 years experience in software development with various coding languages. For R, I have done data manipulation, plotting, and statistical regressions, data science, and so on. If your R tutoring need is associated with Statistics, you may kindly review my qualifications on Stat separately. In short, on Business Statistics, an MBA core course audited at Univ of Chicago Booth business school, my final exam got an almost perfect score, 172 on the scale of 178. Also, I am a math major, and have done projects on statistical regression and data mining. Additionally, I took graduate level econometrics at Univ of Chicago on more advanced topics on Statistics. If you are interested in working with me, or would like to have a further discussion, please kindly let me know.
SAT Math

SAT Math

Besides SAT, I tutor LSAT (for law school ). The RC Reading Comprehension and LR Logical Reasoning on LSAT are much harder than RC on SAT. Additionally, my math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively.
SQL

SQL

Senior Software Engineer with over 10 years industry experience of data analytics using SQL on daily basis. Experience in working on database applications, large scale data sets, data analysis, data cleaning, and data validation, and familiarity in dealing with common data problems. Experience to validate data from different systems, or from different stages of data loading processes, or data from different timelines / time frames, different data releases.  Complex SQL queries in industry I created from scratch include: many times the SQL statement for one single query goes more than 10 pages (A4 printing paper); for example, a SQL statement with multiple unions, each of which has multiple nested unions with subqueries, derived tables, various table joins, row level and aggregation functions, case statements, data type cast, columns alias, and so on, together with appropriate grouping and sorting. From such background, I would like to help you on SQL query statements, data analytics, data cleaning techniques, together with tools like Tableau, Rapid Miner, SAS, power BI, alteryx, Excel, and so on.
SSAT

SSAT

Besides SSAT, I tutor LSAT (for law school ). The RC Reading Comprehension and LR Logical Reasoning on LSAT are much harder than RC on SSAT. Additionally, my math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively.
Statistics

Statistics

I have years experience of teaching Statistics at a college, and have tutored AP Statistics on topics including Z-score, Empirical rule, constructing confidence interval, and more. My teaching emphasizes the “why” in addition to demonstrating steps to solve the math problems. Additionally, I took Business Statistics and Econometrics courses and worked on applications of econ and finance. On Business Statistics, MBA core course audited at Univ of Chicago (Booth business school), my final got an almost perfect score, 172 on the scale of 178. This course covered data analysis (plots, univariate, bivariate data, variance, standard deviation), probability theory (conditional, marginal, and joint distributions; covariance and correlation, various probability distributions of discrete and continuous variables: cdf, etc), statistical inference (confidence intervals, Chi-square, t distribution, p-value, hypothesis testing, etc), and regression. Also, as a math major, I have done projects on statistical regressions and data science , including topics on sample & population, properties of estimator (BLUE), OLS, simple/multiple linear regression, hypothesis test, t-test, F-test, p-value, residual analysis, instrument variables, TSLS, model selection, model comparison, predicative models, classifications, KNN, Cluster, PCA, and so on. Additionally, I took graduate level econometrics at Univ of Chicago on more advanced topics on Statistics, say time series, GMM, etc. I look forward to working with you on Statistics, Econometrics.
Trigonometry

Trigonometry

I teach Trigonometry at the college. My math training has been rigorous since elementary school, which led me to perfect quant score on my first official attempted GMAT (total 730, 96 percentile) (GMAT is for MBA at business school, covers various math topics up to high school). Also, when in high school, I participated various math competitions and won the prize; I also won the district level selection for international math Olympiad.  I have faculty teaching experience at the college. Besides Algebra/Trigonometry, Pre-Calculus, Geometry, Statistics, Number Theory, Linear Programming, Set Theory, Graph Theory, Logic and Critical Thinking, I also teach a math transition course to help college students review high school math so to prepare them for college math. This special course is held for students who does NOT have a satisfied high school GPA. Students in this class have knowledge/skill gaps all over areas since elementary school math - instructing them can be challenging and each term my class got an impressive passing rate. I hence learned a broad range of perspectives that students have on math, and I hence learned ways to help students who interpret math from various unexpected angles and help them successfully pass math exams. The transition course covers from Whole Numbers, Fractions, Decimals, to Geometry, Trigonometry, Statistics, Polynomials, System of Equations and Inequalities, Radical and Quadratic Equations, till Exponential and Logarithmic Functions, and more. For math study, I strongly believe in a solid grasp on definitions, followed by working through proper examples. I am good at helping one learn thru solving problems. Particularly I am good at identifying where the students misunderstand the definition, get stuck, and how their mistakes occur so to effectively help students get to the Aha moment. I find my approach balances both conceptual and practical knowledge, and helps students retain the material effectively. I pay particular attention to help students gain their confidence on

Examples of Expertise

Mary has provided examples of their subject expertise by answering 16 questions submitted by students on Wyzant’s Ask an Expert.

See all of Mary ’s answers ›
Mary S.'s Photo

Questions? Contact Mary before you book.

Still have questions?

Contact Mary

Ratings and Reviews

Rating

5.0 (95 ratings)
5 star
(95)
4 star
(0)
3 star
(0)
2 star
(0)
1 star
(0)

Reviews

LSAT

Comprehesive review of sufficient and necessary assumptions with great examples and well organized presentation. This session really helped me understand the principles necessary to correctly answer questions.

Patrick, 12 lessons with Mary

Very good! Very good at explaining and teaching.

Mary is an amazing LSAT tutor. We reviewed parallel flaw, sufficient and necessary assumptions, and if then statements. She has really helped me understand the logic behind the questions and teaching me how to properly prep.

Lanna, 20 lessons with Mary

Mary is so knowledgeable

Mary helped me review a mock exam to prepare for a professional designation. She came prepared to our sessions, was thorough in her explanations, and was efficient with our time. She has been a huge help.

Lee Ann, 4 lessons with Mary
Tutor responded:

Thank you Lee Ann! I enjoy tutoring finance.

LSAT

Thorough and comprehensive tutoring and application of principles. Very patient and provides great examples. Lots of learning in a very efficient presentation.

Patrick, 12 lessons with Mary

Efficient and organized

After just 2 sessions with Mary, I have apready begun to understand concepts and patterns more clearly. She is very methodical, patient, and organized. Through her explanation, grasping the material has become much easier.

Patrick, 12 lessons with Mary
Tutor responded:

Nice working with you Patrick! Great you so quickly noticed patterns in LSAT!

great

Very patient, definitely knows the material. Highly recommend! Help me understand all the materials needed for upcoming my final exam.

Brando, 1 lesson with Mary

excellent tutor. I enjoyed the lesson

Thanks Mary for the Oracle SQL lesson. I appreciate your patience and detail oriented when explaining how solve the different problems I had. I will definitely continue tutoring with you.

Benjamin, 2 lessons with Mary

Great tutor

Mary was well prepared, researched material in advance of the session. She was well versed and patient with questions. She took the time to ensure each aspect of the lesson was fully explained and understood.

David, 1 lesson with Mary

patient and diligent tutor

Mary is an awesome tutor! She painstakingly went through each lecture slide of my professor and explained each piece so I could understand in layman’s terms. She was patient and prepped the slides ahead of time. She really knows a lot about econometrics not just the math but the interpretation as well. Thank you so so much for your time and effort and consideration; I will be coming back for more lessons!!

Masha, 2 lessons with Mary

excellent teacher. super patient.

Mary carefully prepared before the lesson and was extremely patient in teaching tones, grammar and pronunciation. I highly recommend Mary!

Fannie, 6 lessons with Mary
Hourly Rate: $300
Contact Mary