Samuel Yang
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Maths tutor · IB · A-Level · AP · competitions · online

Every step written down.

I teach one-to-one maths to students who come to me through consultancies and agencies. You stay in charge of the student. After each lesson I send you a short written note.

§ 01 About me

Penn maths. About 5,000 hours of teaching.

B.S. Mathematics
3.8GPA out of 4.0 at the University of Pennsylvania. I focused on statistics and data science and finished early, in December 2023.
Teaching hours
≈5,000across more than four years
Education partners
10+schools and education companies I’ve worked with
Question bank
18,000+bilingual questions, sorted by type

§ 02 How referrals work

You keep the student. I take the maths.

  1. 01

    Referral

    Send me the curriculum, the student’s current level, the target grade and the exam dates. I’ll reply with where I would start.

  2. 02

    First lesson

    The first lesson is a diagnostic. I find the question types the student drops marks on, then write a plan by topic and exam date that you can pass to the family.

  3. 03

    Lessons

    Lessons are one-to-one and online, on a shared whiteboard. Each follows a booklet chapter: a short summary of the idea, then exam-style questions grouped by type. Homework uses the same types.

  4. 04

    Notes

    After every lesson the counsellor gets a short written note. It says what we covered, what is solid now, and what we do next.

§ 03 What I teach

From IGCSE to AIME.

International

  • IB Maths AASL · HL · IA
  • IB Maths AISL · HL · IA
  • A-Level MathsPure · Stats · Mechanics
  • A-Level Further MathsCore Pure · options
  • IGCSECore · Extended · Additional
  • HKDSECompulsory · M1 / M2

United States

  • AP Calculus AB
  • AP Calculus BC
  • AP Statistics

Competitions

  • AMC 10 / 12
  • AIME
  • BMOUKMT
  • EuclidCEMC

Admissions & university

  • TMUA
  • ESAT
  • University mathsCalculus · linear algebra · probability · statistics

§ 04 A sample chapter

Read the working.

This is one booklet chapter, on De Moivre’s theorem. Students get the questions. Under each page is the teacher booklet, with full solutions and the mistakes I see most.Hover over the answer space to read it,Tap the answer space to read it, or switch the whole page.

Complex numbers · Chapter 4 · IB Maths AA HL · A-Level Further Maths · Core Purep. 1 / 5

De Moivre's theorem

In polar form, multiplying complex numbers adds their arguments, so raising to a power multiplies the argument. All four questions below use that one fact.

Samuel Yang · Complex numbers

I wrote these questions for this sample. They are in exam style but not taken from IB or Cambridge papers. Booklets in lessons draw on a bank of 18,000+ bilingual questions.

§ 06 Questions

What does a lesson look like?

A video call with a shared whiteboard. We work from the plan, and the student keeps the written pages afterwards.

How do you fit different time zones?

We fix a regular slot before the first lesson, set around the student’s school day.

How do you report progress?

A short note after each lesson: what we did, what the student got right, and what needs more work. It goes to the counsellor, the family or both. Your call.

Who stays in charge of the student?

You do. I’m the maths part of your plan. Scheduling and messages to the family can go through your team.

How do we start?

Email me the curriculum, level, target and exam date. I’ll suggest a starting point, usually a diagnostic lesson, and send a plan for you to look over.

Have a student in mind?

yangyangmathematics@gmail.com

Tell me the curriculum, level and target. I’ll reply with where I would start.