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Master's from Stanford, Perfect GRE Quantitative Score
Alex S.

4.8 (303 ratings)

1,690 hours tutoring

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About Alex

Bio

Hello, I'm Alex S. I am a patient and understanding tutor who is committed to helping students succeed. With an M.S. in Symbolic Systems from Stanford University and a background in Economics, I provide targeted academic strategies in Advanced/AP Mathematics, Micro/Macroeconomics, Statistics, Econometrics, and comprehensive test preparation for the SAT, ACT, and GRE.

My experience as a former Associate Professor in the San Diego Community College District has equipped me to go beyond...

Hello, I'm Alex S. I am a patient and understanding tutor who is committed to helping students succeed. With an M.S. in Symbolic Systems from Stanford University and a background in Economics, I provide targeted academic strategies in Advanced/AP Mathematics, Micro/Macroeconomics, Statistics, Econometrics, and comprehensive test preparation for the SAT, ACT, and GRE.

My experience as a former Associate Professor in the San Diego Community College District has equipped me to go beyond standard tutoring by building sustainable, problem-solving strategies to optimize your academic and test-taking success.

If a strategic, results-driven approach aligns with your goals, I invite you to book a lesson today. All calendar slots are updated in real time. If a slot is visible, it is 100% confirmed upon Instant Booking.

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Education

Colorado College
Economics and Business
Stanford University
Masters

Policies

  • Hourly Rate: $39
  • Rate details: <24 hours cancellation = full charge; however, I offer a one-time 'Life Happens' cancellation fee waiver for established students.
  • Lesson cancellation: 24 hours notice required

  • Background check passed on 12/2/2014

  • Your first lesson is backed by our Good Fit Guarantee

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Approved Subjects

ACT English

ACT English

I scored a 35 on ACT English and have tutored and taught ACT classes in Southern California since 2012.
ACT Math

ACT Math

ACT Instructor for UC San Diego Multicolor, easy-to-follow notes Good Fit Guarantee
ACT Reading

ACT Reading

ACT Prep Class Instructor, FLEX College Prep 8/10-6/12 and UCSD Extension 9/12-present Expert on ACT exam format and content Good fit guaranteed
ACT Science

ACT Science

I received my Master's Degree in Science from Stanford University. I'm familiar with the type of reasoning required for the ACT Science Section. My academic background includes extensive work in data analysis, including the trends, charts, tables, and figures the ACT tests.
Algebra 1

Algebra 1

I hold my CSET (California Subject Examination for Teachers) qualifications for Math. I have taught Mathematics at private schools in Southern California for several years. I've helped many students succeed in their Algebra 1 coursework in the past and understand the level of rigor required for high school mathematics. Let's schedule a session today!
Algebra 2

Algebra 2

MS in Symbolic Systems Logic/math teacher for Chula Vista High School Easy to follow notes Good fit guarantee
C++

C++

My passion for C++ was truly ignited during my graduate studies at Stanford University, specifically while mastering the rigorous 'Programming Abstractions' (CS 106B) course. This experience built upon the solid technical foundation I established during the Computer Science sequence at Colorado College. Through this intensive academic work, I have developed a comprehensive and nuanced understanding of C++ syntax and logic. I genuinely enjoy the complex challenges this language presents and look forward to helping students navigate them.
Calculus

Calculus

Took Calc 1-3 and Matrix Algebra as courses in Undergrad work, have taken AP Calc and tutored high schoolers both in AP Calc AB and BC and college students in their Calculus classes.
Computer Programming

Computer Programming

With a Master’s from Stanford and nine years of experience as a college Computer Science instructor, I specialize in bridging the gap between basic syntax and professional software design. I provide expert guidance in C++, Java, and Web Development (HTML/CSS), focusing on making complex logic and algorithmic thinking accessible. My structured approach is tailored to help both introductory students and those navigating advanced systems master their coursework. I am dedicated to equipping you with the essential skills needed for academic excellence and professional success in technology.
Computer Science

Computer Science

I received my MS in Symbolic Systems from Stanford University in 2012. During that time, I completed several courses in Computer Science, including CS 106B Programming Abstractions and CS 108 Object-Oriented Systems. I also completed CS 122 Computer Science I and 222 Computer Science II at Colorado College, my undergraduate university. I have tutored multiple students in both Computer Science and AP Computer Science since 2009.
Discrete Math

Discrete Math

As a Stanford University graduate with an M.S. in Symbolic Systems, I possess a unique, interdisciplinary background in logic, mathematics, and computer science. I served as an Associate Professor within the San Diego Community College District for over a decade, where I authored curricula and taught advanced courses such as Discrete Mathematics for Computer Science (CISC 246). My professional approach is results-driven, leveraging over 1,400 hours of specialized tutoring experience to build sustainable problem-solving strategies for my students. I am committed to academic success and have a proven track record of helping students excel in complex quantitative subjects.
Econometrics

Econometrics

My undergraduate major--Economics--required me to take many courses in economics, including Econ 408 Econometrics, in which I received an 'A.' Additional relevant coursework in mathematics includes Math 217 Probability and Statistical Modeling and Math 220 Linear Algebra. Additional relevant coursework in economics includes Econ 207 Intermediate Microeconomic Theory, Econ 209 Intermediate Macroeconomic Theory.
Elementary (K-6th)

Elementary (K-6th)

I recently passed all three exams of the California Subject Examinations for Teachers Qualifications from the California Commission on Teacher Credentialing in Math. I have tutored multiple students in grades K-6 in math since 2012.
Elementary Math

Elementary Math

MS, Symbolic Systems, Stanford University Tutored Elementary Math Extensively Good Fit Guarantee
English

English

I have tutored writing extensively beginning in college at the Hume Writing Center, and later enrolled as a PhD Student at UC San Diego in the Linguistics Department. As a Stanford graduate, I'm familiar with the level of sophistication required for entrance into top colleges. I provide tutoring for school essays, personal statements, admissions essays, and more.
Geometry

Geometry

I am a CBEST and CSET California licensed Geometry teacher by the California Commission on Teacher Credentialing I am also a Math teacher at Cal Coast Academy.
Grammar

Grammar

In my work teaching SAT and ACT classes, I was always sure to prioritize Standard English conventions. I would teach the rules of grammar to these students and to my peers in the Writing Center in college. I also earned my MS in Symbolic Systems and completed several years of a PhD program in Linguistics at UC San Diego.
GRE

GRE

Perfect score on quantitative section 94th percentile on verbal Grad school at Stanford University
Java

Java

I received my MS in Symbolic Systems from Stanford University in 2012. During that time, I completed several courses in Computer Science, including CS 106B Programming Abstractions and CS 108 Object-Oriented Systems. I also completed CS 122 Computer Science I and 222 Computer Science II at Colorado College, my undergraduate university.
Linear Algebra

Linear Algebra

I took Linear Algebra in College. Later, I took the California CSET exam to be each able to teach Linear Algebra, matrix theory, etc. in high school classrooms. Since then, I've helped many students with Advanced Mathematics, which I truly enjoy doing.
Logic

Logic

In 2012, I received my MS from Stanford University in Symbolic Systems, the study of language and logic. My graduate coursework includes Phil 250 Basic concepts in Mathematical Logic and Phil 254 Modal Logic. Since then, I have taught the course Introduction to Logic for the UC San Diego Extension once in 2013 and twice in 2014.
Macroeconomics

Macroeconomics

I was an Econ major in college, and have tutored econ extensively.
Microeconomics

Microeconomics

I was an Econ major in college, and have tutored econ extensively.
Microsoft Excel

Microsoft Excel

I received my MS in Symbolic Systems in 2012. Since then, I have been teaching for Mesa College, including coursework on specialized functions, statistical analysis, financial application, cell and range references, data input and formatting, and more in Microsoft Excel.
Microsoft Word

Microsoft Word

I taught in the San Diego Community College District from 2015 to 2024. The courses I taught included instruction in the subjects of Microsoft Office programs. Specifically, I taught students how to use Microsoft Word, PowerPoint, Excel, Access, Visual Basic, etc.
Phonics

Phonics

I received my MS from Stanford University in Symbolic Systems--the study of language and logic--in 2012 before spending two years in a PhD program in Linguistics at UC San Diego. During those two years, I took such courses relevant to phonics as Introductory Phonology and Field Methods (which required the use of phonetic notation systems), and I was the TA for two Introduction to Linguistics courses in which students learned the phonetic alphabet and the phonetic transcription process. As a tutor, I have also worked individually with many students ages 8-11 on phonics.
Piano

Piano

I have experience with both classical and jazz piano for over 15 years. I have studied for four years in college with renowned classical pianist Susan Grace (who played concerts Rockefeller Hall), and jazz pianist Bruce Pennington. I also worked as a nighttime jazz pianist at the restaurant DC's on B St in Pueblo, Colorado.
Prealgebra

Prealgebra

I've taught prealgebra math courses in the summer at a college preparatory academy in the Bay Area. I've taken a teacher's subject examination and passed in order to teach this level of math in middle and high schools. I also worked in a private high school in the San Diego area where I taught math.
Precalculus

Precalculus

California Subject Examination for Teachers Certified up through Calculus, including Precalculus
Proofreading

Proofreading

In college I worked at the Writing Center. My job was to proofread student papers and suggest advice. My approach was a combination of minimalist and directive tutoring.
PSAT

PSAT

I received my MS from Stanford University in 2012. That same year, I began to teach weekly or semiweekly SAT Prep classes for the University of California San Diego Extension Program. I've worked with many private tutoring students preparing for the PSAT over the years.
SAT Math

SAT Math

Alex holds his California Subject Examinations for Teachers Qualifications from the California Commission on Teacher Credentialing in Math (Algebra, Geometry, Probability and Statistics, and Calculus). He has been teaching SAT prep courses for the UCSD Extension since 2012.
SAT Reading

SAT Reading

Alex has been teaching SAT prep courses for the UCSD Extension since 2012. He also holds California Subject Examination for Teachers Qualifications from the California Commission on Teacher Credentialing in Math and English.
SAT Writing

SAT Writing

Spent two years in Linguistics PhD Program at UCSD MS from Stanford University National Merit Scholarship Finalist Scored >2100 on SAT
Spanish

Spanish

MS, Symbolic Systems, Stanford University 2 years in Linguistics PhD Program at UCSD Tutored Spanish Extensively Good Fit Guarantee
Statistics

Statistics

MS Degree Tutored stats extensively Good fit guarantee
Trigonometry

Trigonometry

Tutored trig and related subjects extensively Easy to follow, multicolored notes Good fit guarantee
Visual Basic

Visual Basic

From 2015-2024, I taught at least one course offering of a class in the community college system in California that included six chapters of Visual Basic (from Getting Started with Visual Basic by Tony Gaddis). These included use of controls, input and output, loops, keywords, declarations in memory, and error-catching in Visual Basic. The coursework I taught also included how to program functions in Visual Basic and software principles such as code reusability.
Writing

Writing

As a peer tutor at The Writing Center at Colorado College, I've helped many students with their writing over the years. These have included senior theses, academic essays, papers, and creative writing projects. I help students with every phrase of the writing process--from ideas to typos.
R
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Ratings and Reviews

Rating

4.8 (303 ratings)
5 star
(274)
4 star
(13)
3 star
(3)
2 star
(3)
1 star
(10)

Reviews

Knowledgeable Tutor

Alex S. is a really helpful and understanding tutor for statistics. He always asked me if I had any questions or if I was confused about a certain topic. We walked through different problems, and he explained how to solve them clearly. I would definitely recommend him to others who are struggling with statistics topics.

Sofia, 14 lessons with Alex

Knowledgeable, patient and maticulously guides you in the right direction

I've worked with Alex for 2 sessions now for my college math course Discrete Math & Logic and I can tell you for sure, he knows his stuff!! He has a wealth of knowledge and showed me how to come up with answers without outright giving them up like some tutors may do out of impatience. He taught me how to properly conctruct truth tables in order to find answers and broke down logical laws in the simplest way possible to understand. He's your guy if you're looking for a truly humble, patient and reliant math wizard. Thanks Alex!

Cassion , 2 lessons with Alex

Considerate, intelligent, and prepared.

Don’t let the low price fool you into thinking Alex’s services are “cheap” or any less effective than an expensive tutor. Alex helped me study for my SAT and has consistently been incredibly helpful and kind during sessions while also being incredibly prepared with resources and practice readily available. Examples being SAT common vocab words list, SAT practice questions, SAT books, and an intensive understanding of tools like Desmos. Overall I would highly recommend Alex as a tutor due to his ability to teach kindly and efficiently at such a good price. Thank you Alex!

Jayce, 5 lessons with Alex

Helpful tutor

Alex S. helped me improve throughout a summer statistics course. He broke down difficult concepts and explained details behind why a solution was correct. He was also available for multiple sessions a week which was helpful as it was an accelerated class. He always provided additional resources and adapted when I needed to review multiple topics in one session.

Nikita, 12 lessons with Alex

Super patient and knowledgeable tutor

Alex has been super helpful with my daughter studying for the SAT. She is very stubborn when it comes to asking for help. I actually heard her on the phone the other day saying “it’s actually very helpful and my tutor is smart bro”. Thank you Alex!! She takes the SAT on 08/22. I send a follow up on the score!

Amy, 5 lessons with Alex

Great Tutor

I highly recommend this tutor for Probability and Statistics. He was extremely knowledgeable, patient, and explained concepts in a way that was easy to understand. He also helped me with RStudio for my Econometrics class, making sure I understood both the statistical concepts and how to apply them in R. His guidance was instrumental in helping me complete my assignments with confidence. I would definitely recommend him to anyone looking for support in Statistics, Probability, Econometrics, or RStudio.

Chris, 4 lessons with Alex

Patient and Knowledgeable

Alex helped me to study for a very challenging and unique test. He has a strong understanding grammatical rules, does an excellent job explaining concepts that are difficult to grasp, and has access to very helpful materials. If I do not understand something the first time, he always finds another way to explain it until it clicks. He is very patient, flexible and adaptive in his teaching style and has made me much more confident in my preparation. I highly recommend.

Natalia, 12 lessons with Alex

Knowledgeable and kind tutor

Alex has been an excellent math tutor—patient, clear, and very effective in helping my son better understand complex concepts in high school algebra and geometry. We are very happy and thankful to have him as our tutor.

Sarah, 27 lessons with Alex

Alex, S

My biggest challenge before we started our sessions was understanding Ttests and Ztests Alex was able to help me understand how to use these functions completely! Alex has been a great and patient tutor for me and I would not be doing good without him!

John K., 21 lessons with Alex

Knowledgeable

Alec was excellent! He explained the concepts clearly and shared helpful tips that made the material easier to understand. I wish he was local because I learn better hands on.

Shonelle, 1 lesson with Alex