Diagnose
Identify the concepts, habits, and prerequisite gaps holding progress back.
Thoughtful, one-to-one instruction
Build the skills.
Understand the why.
Individualized math, computer science, and test preparation built around how each student learns.
Explain
Make difficult ideas clear through multiple representations and strategies.
Reinforce
Practice with feedback and build a repeatable way to study.
1515+ yearsTeaching and tutoring
1:1One-to-oneBuilt around the student
⌖Arcadia · San Marino · Pasadena + OnlineIn-person and Zoom instruction
Mathematics
Strong foundations.
Clear next steps.
Each lesson connects current work to the prerequisite skills beneath it—so students know what to do and why it works.
Middle School Math
Support for Math 7, Math 8, and Pre-Algebra, with an emphasis on number sense, proportional reasoning, equations, and problem-solving habits that prepare students for Algebra 1.
Algebra 1 & 2
Algebra develops logical reasoning, abstract thinking, and mathematical modeling through equations, functions, and relationships. Students learn to understand data, check AI calculations, spot errors, and build a strong foundation for advanced math, science, engineering, business, economics, and data analysis.
↗Geometry
Geometry strengthens rigorous reasoning, spatial thinking, and the ability to build complete arguments through shapes and proofs. Students learn to explain why conclusions are true—an essential skill for engineering, architecture, computer graphics, robotics, and AI.
AP Precalculus
AP Precalculus strengthens function sense, mathematical modeling, and quantitative reasoning while preparing students for calculus. Students learn to interpret patterns, test assumptions, and evaluate AI-generated solutions, building a strong foundation for science, engineering, economics, and data analysis.
↗AP Calculus AB & BC
AP Calculus AB & BC develops analytical reasoning and the ability to model change through derivatives, integrals, and their applications. Students learn to explain their methods, verify AI-generated work, and apply mathematics to real problems in science, engineering, economics, and data analysis.
↗AP Physics 1: Algebra-Based
AP Physics 1 develops conceptual reasoning through motion, forces, energy, momentum, rotation, oscillations, and fluids. Students learn to create representations, analyze data, support claims, and use algebra to solve problems with clear explanations and AP exam readiness.
AP Computer Science A
AP Computer Science A develops the ability to read code, understand program logic, debug errors, and judge whether AI-generated answers are reliable. These foundations help students use ChatGPT and Codex effectively on real projects and prepare for computer science, engineering, data science, and business analytics.
Test Preparation
Practice with purpose.
Preparation starts with evidence. We identify what is costing points, then build the content knowledge, judgment, and pacing needed to improve.
SAT
Targeted math preparation built from diagnostic results, recurring error patterns, and timed practice.
Explore SAT tutoring →ACT
Strategy and content reinforcement for the pace, precision, and range of ACT mathematics.
ISEE
Level-appropriate preparation for quantitative reasoning and mathematics achievement.
Explore ISEE tutoring →Advanced Math Placement Test
Targeted preparation helps students pursue earlier placement in advanced math classes and build a stronger path toward taking AP coursework sooner.
Areas Served
Local support.
Flexible format.
One-to-one instruction is available in Arcadia, San Marino, and Pasadena, with online tutoring for students who prefer Zoom.
01
Arcadia
Math, AP, and test preparation with an Arcadia-focused service page.
View Arcadia tutoring →02San Marino
Local math support, including evidence connected to San Marino Unified School District.
View San Marino tutoring →03Pasadena
In-person tutoring is also available for Pasadena families; ask about fit and availability.
Ask about Pasadena →The Approach
A better study process—not just another answer.
Lessons are designed to make the student more independent over time. We uncover gaps, make thinking visible, and turn corrections into a practical workflow.
- 01Diagnose
Find the specific concepts, habits, or prerequisite skills holding progress back.
- 02Explain
Use multiple representations and strategies until the underlying idea is clear.
- 03Reinforce
Practice with feedback, organize notes, and build a repeatable way to study.
Student Results
Progress, in their own words.
Selected score reports, messages, and handwritten feedback from students and families. Identifying details have been redacted.
01Score report & message
02Score report
03Score report
04Student message
05Parent message
06Student note
07Student message
08Parent note
09Student note
10Student message
11Parent note
12Student message
13Student note
14Student note
15Placement result & family message
16Parent & student messages
17Parent feedback
18Parent feedback
Student & Parent Feedback
Names are reduced to initials. Lesson counts are retained from the original feedback.
Images are presented in full at their original proportions as non-interactive records and do not open or enlarge when selected.
About Tzeng Tutoring
“Students make lasting progress when they learn how ideas connect—and how to find their own next step.”
One-to-one instruction from an experienced math educator, focused on precise diagnosis, clear explanation, and durable study habits.
- B.S. in Mathematics, UC Riverside
- In-person tutoring in Arcadia, San Marino, and Pasadena, plus online