Course support
Middle school math, Algebra 1 and 2, Geometry, AP Precalculus, AP Calculus AB and BC, AP Physics, and AP Computer Science A.
Online Tutoring Nationwide
One-to-one support that travels
with the student.
Live online math, AP, computer science, and test preparation for students across the United States, with targeted practice, written feedback, and organized materials after the lesson.
0115+ yearsTeaching and tutoring experience
02One-to-oneInstruction built around the student
03Online nationwideZoom sessions across U.S. time zones
A clearer starting point
Online tutoring should be a complete learning process—not just a video call.
Students share recent assignments, assessments, score reports, or class materials before the lesson. That evidence helps identify whether the immediate difficulty comes from the current topic, a prerequisite gap, or an inefficient study habit.
During the Zoom session, ideas are explained visually and step by step. Students then demonstrate the process themselves. Afterward, targeted practice and feedback help determine whether the method remains clear without live prompting.
Online tutoring is $80 per hour, with a one-hour minimum per session. Rates and the scheduled duration are confirmed before booking.
Test preparation
Diagnostic-based SAT Math, ISEE Math, ACT Math, AP exam, and advanced math placement preparation.
U.S. time zones
Selected weekday and weekend appointments are available for students in Pacific, Mountain, Central, and Eastern Time.
What we work on
A clear online workflow before, during, and after each lesson
The same cycle is used whether the goal is current-course support, exam preparation, or long-term skill development.
Before the lesson
Send the relevant assignment, assessment, notes, or score report so lesson time can focus on the highest-value needs.
During the lesson
Use live explanation, digital annotation, questions, and student demonstration to make the reasoning visible.
After the lesson
Receive targeted practice and written feedback designed around the errors or concepts identified in the session.
Between sessions
Use the private student portal to keep assigned PDF and image materials organized and accessible.
The teaching process
A better study process—not just another answer.
- 01Share evidence
Begin with the student’s real course materials, completed work, diagnostic results, or upcoming test scope.
- 02Learn actively
Move from teacher modeling to student explanation and independent application during the live session.
- 03Verify retention
Use follow-up practice and corrections to check that the process still works after the lesson ends.
Selected evidence
Results presented with context.
The records below are already part of the Tzeng Tutoring results collection. Identifying details have been redacted.
SAT Math
A redacted student message shared a 1430 SAT score with a 760 Math score.
ISEE Mathematics
A redacted score report and family message shared two mathematics stanine scores of 9.
AP Calculus BC
A redacted student message shared an AP Calculus BC score of 5.
Free consultation
Start with the student’s current work and time zone.
Share the student’s city, course or exam, current evidence, target date, and preferred times. The introductory conversation can determine fit and a practical next step.