Excited math teacher getting ready to teach
Math teacher with writing on screen
Another math teacher with writing on screen
Professor Po-Shen Loh teaching math


A revolutionary way to learn math online


Live online teaching

Now looks like this

By relatable, brilliant people

Anchored by expertise

+ Fun

Are you in any math class from Pre-Algebra through Geometry, and find it easy? We're perfect for launching your potential into the stratosphere.

Our live math courses don't just accelerate. We go deep. And inspire. We cover math from competitions like MATHCOUNTS, AMC 8, and AMC 10, as tools to teach you to invent.

Then we add personality: real, interesting people. Our new tech blows up interactivity (and looks nice). It's the fun of Instagram Live and Twitch, applied to serious education, for the first time.

Invented by Po-Shen Loh.

Icon for Introduction


Icon for Algebra Basics

Algebra Basics

Icon for Geometry


Icon for Combinatorics


Icon for Algebra Tools

Algebra Tools

Icon for Number Theory

Number Theory

Meet the Math Streamers

Venn Diagram showing that our LIVE cohosts are both good at math and have magnetic personalities.

Learn from the brilliant high school students in Po-Shen Loh's nationwide program which finds exceptional math students and teaches them improvisational comedy and performance. They hone magnetic communication skills by live-streaming their teaching.

The application process is as competitive as top college admission.

Meet all the stars


Status Quo



In-Video Chat

You're not alone anymore. We've solved the problem of Zoom class being so boring that everyone secretly watches YouTube instead. The breakthrough was to put the chat on-screen, as a centerpiece to focus discussion and interaction. How? By moderating it. A feature that is not available in Zoom.




Improv Comedy

In each class, two live-streamers teach 40 students. Ideas flow in so many more ways, and elevate the excitement level of the class. This teaching style is our unique combination of performance techniques from improv comedy, combined with broad math expertise.


Powered by Po-Shen Loh

Live interaction? Or professional math insight and expertise, with crystal clear, polished, explanations? Who says you can't have both? Our live-streamers multiply the Prof. Loh effect by interspersing his short pre-recorded clips. With our technology, when they smoothly ask, “Prof. Loh, what do you think?”, it's just like he's in the room too.


Rolling Enrollment

We've cracked the code. Online courses are now more lively than in person. This lets us create class cohorts without geographical limitations. You don't have to squeeze your schedule around an 8pm class, or wait for the next season to enroll in a camp. Just share your times of availability, and our system will automatically search for schedules that match. We'll contact you as soon as we create a new meeting time that suits you.

Actual Class Footage

Words can't describe how engaging and immersive this new experience is. See our techniques at work in this raw (unedited) video capture from an hour-long Zoom class, taught by multiple former MATHCOUNTS state champions. Audio and video from students in the class has been blocked for privacy. The people in the video are the brilliant high school math students who are teaching. The on-screen chat messages show how actively their students were participating in the discussion.



The backbone of middle school math competitions. Efficiently covers important topics that are not part of standard school curriculum. Modules are available for a wide range of levels, from middle and elementary school students familiar with Pre-Algebra, to high school students who need to learn Combinatorics and Number Theory for high school math contests.

Hours per Module

Bite-sized classes. Structured around big questions that you get to think about, and discuss your ideas. Our streamers improvisationally lead students to discover how their ideas could contribute to a solution, before Prof. Loh's segment provides comprehensive coverage.

Carefully Designed Problems

Each module contains over 150 specially crafted problems, each of which teaches new concepts. Many are quite challenging. You'll discover abilities you never knew you had. Includes homeworks and practice tests.


Our live courses follow the same curriculum as our self-paced courses (which have been taken by thousands of students). The full syllabus for each course is listed on the page for the self-paced version for each course.

Icon for Introduction
Introduction (Module 0)

An efficient tour through all areas of beyond-curricular math (aligned with MATHCOUNTS and AMC 8). Designed to inspire students to love challenging math.

Self-paced M0
Icon for Algebra Basics
Algebra Basics (Module 1)

A deep dive into the algebraic concepts which can be understood with just a Pre-Algebra background (prerequisite knowledge: decimals, fractions, and percents). These concepts form the majority of the early problems on MATHCOUNTS and AMC 8.

Self-paced M1
Icon for Geometry
Geometry (Module 2)

Rapidly teaches geometrical concepts through custom-designed problems that are understandable to students who have not yet taken a proof-based high school geometry course. Covers geometry which appears in MATHCOUNTS, AMC 8, and AMC 10.

Self-paced M2
Icon for Combinatorics
Combinatorics (Module 3)

A systematic introduction to one of the most interesting math subjects which is not taught in the standard school curriculum, but which often appears in hard problems on math contests. Covers concepts in MATHCOUNTS, AMC 8, AMC 10, AMC 12, and AIME.

Self-paced M3
Icon for Algebra Tools
Algebra Tools (Module 4)

Since algebraic problems appear twice as frequently as other subjects on MATHCOUNTS and AMC 8, this course makes a second pass at algebra, covering more advanced topics that Algebra Basics (Module 1) did not have time for.

Self-paced M4
Icon for Number Theory
Number Theory (Module 5)

Our most challenging course. A systematic introduction to abstract concepts across number theory, illustrated through custom-designed problems that make difficult-to-grasp ideas concrete. Covers concepts in MATHCOUNTS, AMC 8, AMC 10, AMC 12, and AIME.

Self-paced M5

Learning Pathways

Answer a few questions, and we will recommend a track.

Have you taken any systematic math contest classes outside of school which are beyond Algebra?

Enroll Now

Each introductory course costs $399, for 20 hours of instruction (~$20/hour).

Want to join our next course? You're in luck. Even though our Summer Program finished, we are running a comprehensive and systematic academic year program, starting August 15. It's the most efficient and enjoyable way to learn challenging math during the school year. View the full breadth of our offerings by clicking on the button below.

Free Demo Class and Info Session

Prof. Loh regularly holds interactive information sessions for parents. The first half is a live demonstration of our new teaching method, focused around an actual math problem. The second half explains our curriculum and educational philosophy, and provides practical guidance on how to start.

Upcoming demo sessions:

  • Mon Aug 8, 6:30–7:30pm Eastern
  • Sat Aug 13, 8–9pm Eastern
Register for Demo

LIVE Solves

We regularly hold free public LIVE Solves where we solve problems in real-time, as official collaborations with MATHCOUNTS, Mathleague.org, Math Kangaroo USA, and many other competitions. For those three big competitions, our LIVE Solves will be announced on dedicated pages:

MATHCOUNTSMathleague.orgMath Kangaroo

View the complete list of upcoming sessions by clicking on the button below.

Contact Us

We'd love to talk. We want to help you find the best learning resources for your students. If it's not ours, we'll point you elsewhere. We understand the landscape, and created this because we know it's the best fit for many students. Email us any time at course-consulting@poshenloh.com.

To stay up to date on opportunities, join our email newsletter for busy parents, which sends timely information on math and education every two weeks.