✦ Online AP Physics Tutoring ✦
Small-group & 1-on-1 live Zoom sessions
with Kumu Ras Cas — AP Exam Grader & 15+ Year Educator
"Physics is Phun!"
Kumu Ras Cas
Watch This First
Physics makes sense when students recognize the situation and reason through it step by step.
Why Students Struggle
The Old Way Is Broken
Why "Plug & Chug" no longer works on the AP exam.
Physics is Phun!
See It In Action
Rotational Inertia & Angular Momentum — made fun and intuitive.
Meet Your Instructor
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.
See the Expertise
Real AP Exam Questions — Solved & Explained
Watch Kumu Ras Cas walk through actual past AP Physics 1 exam questions using the official College Board scoring guidelines.
How It Works
A structured, step-by-step approach that builds real understanding — not just memorized equations. We create flexible "maps" for solving any AP Physics problem.
The M.A.P.P. Difference
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:
Memorize formulas → plug in numbers → get answer
Students are graded on how well they explain relationships, justify reasoning, and connect concepts.
The M.A.P.P. Method In Action
Watch the Maps Being Built
These full AP Physics 1 review lessons show exactly how the M.A.P.P. flowchart method guides students step-by-step through any problem.
Unit 2
Dynamics — Laws of Motion
Unit 3
Circular Motion & Gravitation
Real Students. Real Results.
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.
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.
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.
Parent Review
Chris is an incredible math tutor. He worked with my daughter for AP Pre Calculus. 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!!!
Transparent Pricing
Get Started
Choose how you'd like to connect
Schedule your free 15-minute introductory call — no commitment required. We'll discuss your child's needs and see if M.A.P.P. is the right fit.
— or book directly below —
Have questions before committing? Send a message and get a personal response.
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