Personalized K-12 Online Tutoring

EBK Tutoring helps middle and high school students build stronger foundations, better study habits, and confidence in math, science, writing, and test prep.

Explore Now
Explore Now
Young boy in white shirt working on a laptop in a classroom with other students and a teacher

Study smarter,

AND harder

EBK focuses on:

  • breaking down confusing concepts

  • building systems for homework and exams

  • improving the confidence behind the grades

  • teaching students how to think, not just memorize

A man in a blue suit writing mathematical equations and matrices on a whiteboard in a classroom.

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

Gold emblem with a graduation cap, open book, and molecular structures around it. Below the emblem, it says "EBK TUTORING" in gold letters on a black background.

60 Minutes

*Prices vary by tier

Gray and black logo for EBK Tutoring featuring a circular emblem with an open book, a graduation cap, a small plant, and scientific symbols.

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
Venmo QR code with the text 'venmo' underneath
A QR code with the Zelle logo in purple at the bottom.

Step 1 - Book a free 15-min Consultation

Step 2 - Book your Session!

Portrait of a young man with dark hair wearing a black shirt and dark blazer, sitting outdoors near a tree with blurred 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)

More than just tutoring

Send emails and inquiries here!