✦ Online AP Physics Tutoring ✦

MASTER AP PHYSICS

M.A.P.P. — Master AP Physics Program

Small-group & 1-on-1 live Zoom sessions
with Kumu Ras Cas — AP Exam Grader & 15+ Year Educator

"Physics is Phun!"

🚀 Book Your Free Intro Call See the Program

Kumu Ras Cas

Watch This First

Watch: Parents of AP Physics Students, Listen Up

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Kumu Ras Cas

Meet Your Instructor

From Geophysicist
to Physics Educator

Hi, I'm Christopher Castagne — Kumu Ras Cas. I left a career in the oil industry as a Petroleum Geophysicist because I found my true calling: helping students discover their potential in STEM.

Having personally graded AP Physics exams for the College Board, I know exactly where students stumble — and how to guide them over those hurdles. I created M.A.P.P. to make that insider knowledge accessible to every student.

AP Physics 1 Exam Grader — College Board

15+ Years AP Physics & Math Teaching Experience

Background in Petroleum Geophysics (real-world physics!)

Proven results: students scoring 4s & 5s on AP exams

AP Physics Isn't Hard. It's Poorly Taught.

Physics makes sense when students recognize the situation and reason through it step by step.

If your child is taking AP Physics and...

• Studies hard but blanks on tests

• Understands homework but freezes on exams

• Feels confused even after "doing everything right"

• Is anxious about tackling complex problems under pressure

You're not alone. 💙

AP Physics Isn't Testing What It Used To.

The exam has changed. Many AP Physics questions don't even require a final number anymore. Here's what students are actually graded on now:

Old Approach ✗

"Plug & Chug" Physics? That era is over.

"Can you calculate this?"

Memorize formulas → plug in numbers → get answer

What the AP Exam NOW Tests ✓

"Do you understand what's happening, and can you explain why?"

Students are graded on how well they explain relationships, justify reasoning, and connect concepts.

How It Works

The M.A.P.P. Method

A proven 4-phase framework that takes your child from "I don't know where to start" to confidently solving any AP Physics problem on their own.

Measure

Use ongoing diagnostics throughout the course to surface hidden gaps and the common physics misconceptions that quietly hold students back.

Address

Target weak spots and build new knowledge through multiple modes of instruction — visuals, simulations, and real-world examples.

Plot

Work with students to translate what they've learned into personalized concept maps and visual problem-solving frameworks for tackling any physics problem.

Practice

Apply those frameworks to real AP-style questions, increasing in difficulty, until the approach becomes second nature — and performing with confidence on exam day becomes the natural result.

What You Get

📞

Free Intro Call

1-on-1 personal session to assess your child's needs and goals. No commitment.

🎥

Live Zoom Lessons

1.5-hour weekly sessions covering every AP Physics 1 topic. Ask questions live.

📊

Progress Reviews

Regular 1-on-1 assessments to identify improvements and ensure exam readiness.

📚

Homework + Resources

Personalized assignments, practice problems, and access to the online mastery course.

The M.A.P.P. Difference

The "Plot" Step in Action

Here's the exact 4-step mental sequence your child learns to run on any AP Physics question:

🔍 Recognize the Physics

→

❓ Ask the Right Questions

→

🗺️ Map Out the Reasoning

→

✅ Solve It Logically

Not WHAT to think — but HOW to think. That's the M.A.P.P. method.

Real Students. Real Results.

From Confused to Confident

⭐ Scored a 5 — PhD Candidate

Studying AP Physics 1 with Ras Cas gave me a strong foundation in the fundamentals of physics in a non-traditional way — one that encouraged curiosity and exploration. He taught me to genuinely enjoy Physics, rather than solely focusing on performing well on standardized exams. This mindset has served me well on a Physics journey full of twists and turns.

Darren D.

AP Physics 1 (2017) · Current PhD Candidate in Quantum Computing

⭐ Scored a 4 — Northwestern University

Jenny started confused and anxious about Physics. Through consistent support, clear explanations, and engaging lessons, she gained both confidence and mastery of key concepts. Her hard work paid off — she scored a 4 on the AP exam and gained admission to Northwestern University's Medill School of Journalism.

Jenny

AP Physics 1 · Northwestern University, Medill School of Journalism

⭐ Scored a 4 · AP Physics 1

Sajal had never taken physics before — but needed to master the entire AP Physics 1 course in a single semester while balancing band and extracurriculars. Through targeted individual sessions and last-minute exam prep, he earned an A in his school course and scored a 4 on the AP exam.

Sajal

AP Physics 1 · A grade + 4 on AP Exam

Parent Review

What Parents Say

👩

Julie Gwin Dorkin

Chris is an incredible tutor and we were so lucky to have him work with our daughter. His understanding of the concepts, ability to communicate effectively, and use of materials helped her be successful in class — with the added bonus of earning a 5 on the AP Exam. Thanks Chris!!!

⭐ Daughter scored a 5 on the AP Exam

Investment

Let's Talk About What Fits

Every student's needs are different — so rather than a one-size-fits-all rate, we'll figure out the right plan together on your free intro call. Pricing is based on session frequency and format (1-on-1 or small group).

🌍 Committed to Equity: Many top-performing students use private tutors, but cost can be a barrier. If you're genuinely interested but have concerns about access, please reach out — a sliding scale is available on a strictly confidential, case-by-case basis.
[email protected] | +1 323-842-1416