A young man in a dark suit jacket and zip-up sweater sitting outdoors near a tree, with blurred trees and landscape in the background.

Meet Justin

  • Stanford Online High School senior with advanced STEM and writing background, including college-level coursework through Stanford University (Organic Chemistry, Human Physiology)

  • Completed 100+ college credits with a 4.0 GPA

  • Experienced tutor in statistics, biology, and chemistry, with a focus on breaking down complex concepts into clear, understandable steps

  • Science Olympiad coach (Anatomy & Physiology), teaching students to master high-level biological concepts and apply them competitively

  • Strong foundation in advanced mathematics (Multivariable Calculus, Linear Algebra, Differential Equations), enabling support across a wide range of subjects

  • Leadership as Class President and Board Chair of Events

  • Experience working with diverse groups through international leadership (robotics, Model UN), strengthening adaptability and communication with different learning styles

  • Multilingual (Spanish, Mandarin, Italian, Russian)

Secure Your Spot

Ready to make school make sense?

Topics offered:

  • Mathematics

    • Pre-Algebra

    • Algebra I & II

    • Geometry

    • Trigonometry

    • Precalculus

    • Calculus (AB/BC)

  • Science

    • Biology (regular & honors/AP Exam Prep)

    • General Chemistry (honors & AP Exam Prep)

    • Physics (mechanics, algebra-based & AP Exam Prep)

    • Anatomy & Physiology (incl. Science Olympiad prep)

  • Writing, Humanities, and Language

    • MS-level essay writing (structure, clarity, argumentation)

    • HS-level essay writing (structure, clarity, argumentation)

    • Rhetorical Analysis

    • Literary analysis

    • Research papers

    • English coursework support

    • Introductory Spanish (I, I, & III)

  • Test prep

    • SAT

    • ACT

    • AP Biology

    • AP Chemistry

    • AP Calculus AB/BC

    • AP English Language

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60 Minutes

*Prices vary by tier

Silver emblem for EBK Tutoring featuring a graduation cap, open book, molecular structure, and plant, on a black background.

30 Minutes

*Prices vary by tier

  • Basic - $39.99/hour, $24.99/30mins

  • Advanced - $59.99/hour, $34.99/30mins

  • Elite - $79.99/hour, $44.99/30mins

Payment:

  • Venmo (@jguoji)
  • Zelle (justin.guoji@gmail.com or (858) 867-0126)
  • Include Student Name, Time, and Subject
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