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Learn STEM better, together!

Join a focused group class where students solve problems together, ask real questions, and build confidence in math and science—with Youhyun guiding every step.

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Group classes

Three classes to choose from

AP Physics 1 & C

AP Chemistry

SAT Math

About Academic Coach

Big ideas. Clear explanations. Confident students.

I’m Youhyun Lee, a UCLA-trained STEM educator and content creator. I help students understand math and science through clear explanations, real-world connections, and more than one way of thinking.

6+ years teaching K–12 STEM

UCLA B.S. in Biochemistry

Applied Mathematics at UCLA

AP, IB & robotics experience

Watch free lessons

Two-time AIME qualifier

Curious minds ✦

Youhyun Lee, STEM educator and Academic Coach founder

Hi, I’m Youhyun!

Founder • STEM educator • Content creator

Subjects & programs

Every subject is a new way to see the world.

Clear steps, visual thinking, and plenty of “aha!” moments.

Build patterns

Math

Algebra 1 & 2, Geometry, Precalculus, Trigonometry, and AP Calculus AB/BC.

Discover forces

Physics

AP Physics 1, AP Physics C: Mechanics, and Electricity & Magnetism.

Make connections

Chemistry

Foundational chemistry through AP Chemistry, taught with clear visual models.

Create & explore

STEM Programs

Mathematical thinking, VEX IQ robotics, and real-world enrichment programs.

Free on YouTube

Press play. Pause. Learn at your pace.

Review AP Physics, AP Chemistry, algebra, and more with focused explanations students can pause, replay, and learn from at their own pace.

Visit the channel 7K+ subscribers

AP Physics 1: Kinematics

A complete one-hour cram review • 149K+ views

Also watch AP Chemistry →

Student stories

Real progress. Happy learners.

Trusted by students worldwide

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