Math Foundations for Radiation Therapy Physics
...with bonus Units of Measurement course!
Before physics can click, the math has to click!
A self-paced math review course built specifically for radiation therapy & medical dosimetry students.
You know the math is coming. This course helps you get ready for it.
IS THIS YOU RIGHT NOW?
💪 About to start radiation therapy or dosimetry school and are feeling a little apprehensive about physics. You want to feel more prepared before your first class.
😰 Sitting in physics class right now and the math is making an already hard subject even harder.
👀 Keep turning to the internet to piece it together on your own, but would rather hit play and follow along without hunting for solutions across multiple websites.
😅 Find yourself overwhelmed with studying for boards and want a done-for-you approach to brush up on the math before diving back into physics.
If so, you’re not alone. There is a better way.
✴ Are you short on time?
Self-paced — study on your schedule, pause and pick up anytime. Instant access upon enrollment.
✴ Haven't taken math in a while?
You don't need to remember anything. This course starts from the ground up and walks you through everything step by step.
✴ Not sure where your math skills are breaking down?
Watch me (Sara) solve every step of every problem completely on video, so you always know exactly what steps will get you to the correct answer.
Students often hear physics is hard. Or maybe that was or is your experience in school.
If you’re finding yourself nodding along to this, you’re not alone…
I'm here to tell you it doesn't have to be. Setting up a strong foundation in the math skills used in radiation therapy physics courses is the first step to helping make physics feel more doable. Let's get the math figured out first so you can move your focus to building your knowledge in physics.
If you're preparing for your first radiation therapy physics course, currently in school and finding the math challenging, or brushing up before board exam prep — Math Foundations gives you the solid mathematical foundation you need before the physics begins.
This course is a tailored review that covers the exact math topics used in radiation therapy physics, explained clearly with every step shown. No shortcuts. No skipped steps. Just straightforward instruction that builds your confidence one concept at a time.
Not just answers — every step of every problem is walked through completely on video, so you always know exactly what step comes next.
Designed to be a tool, not a checklist. Watch all the lessons, or skip some! Complete half the worksheet until you feel like you've got it, or do the entire thing! Use this course how YOU need to, so you can build up that confidence in math.
What's inside:
WHAT YOU'LL LEARN
Math Foundations
Course Modules
Each module pairs short, focused video lessons with practice worksheets and full solution walkthroughs.
Sara has the calculator on screen and talks through how to enter calculations properly. She discusses which buttons to use (or not use!) to ensure your answers always come out correct.
Sara shows different ways to solve problems (when applicable) and how to format them to make solving them more organized and clear.
MODULE 0
Other Topics
_____
Circles, fractions, decimals & percentages — foundational review.
Lesson: ~ 15 minutes | 3 videos
Solutions: ~ 60 minutes of video
MODULE 1
Order of Operations
_____
Build confident, error-free arithmetic for clinical calculations.
Lesson: ~ 16 minutes
Solutions: ~ 11 minutes of video
MODULE 2
Exponents
_____
Product, quotient, power rules, zero & negative exponents.
Lesson: ~ 33 minutes | 5 videos
Solutions: ~ 30 minutes of video
MODULE 3
Scientific Notation
_____
Work fluently with the very small and very large numbers in RT.
Lesson: ~ 18 minutes
Solutions: ~ 44 minutes of video
MODULE 4
Logarithms
_____
Understand log rules essential for solving radioactivity equations.
Lesson: ~ 12 minutes
Solutions: ~ 38 minutes of video
MODULE 5
Proportions & Similar Figures
_____
Ratios and scaling applied to treatment geometry and imaging.
Lesson: ~ 11 minutes
Solutions: ~ 12 minutes of video
MODULE 6
Trigonometry
_____
Angles, triangles, and their role in beam geometry.
Lesson: ~ 17 minutes
Solutions: ~ 55 minutes of video
MODULE 7
Linear Interpolation
_____
Look-up tables and PDDs — a core clinical skill.
Lesson: ~ 14 minutes
Solutions: ~ 32 minutes of video
MODULE 8
Algebra & Application
_____
Multi-step problem solving grounded in real RT scenarios.
Lesson: ~ 10 minutes
Solutions: ~ 6 minutes of video
About your Instructor
Sara Gill, MSRS, CMD, is a senior medical dosimetrist with 20 years of clinical and teaching experience at a large academic hospital. She has taught radiation therapy physics in the college classroom for years, and RTPhysics was born from her knowledge of what those students needed. Her approach is plain language, every step shown, and a genuine love for finding the explanation that finally makes it click.
STUDENT LOVE NOTES
Sara has helped so many incredible students to find success ...
"I like your design clean & neat, you talk very clear and easy to understand. I like that when you read the slide you show demonstration of how to get to the result. [...] Thank you for creating this! Such a helpful resource for dosimetry students!"
- T.N.
... [T]he way you explain it, it just makes sense."
- Anonymous
"Sara is a great teacher, after months of not understanding, I finally get it!"
- Michelle
"You were thorough and did a great job with the intro and flow through the problems. Seriously great job 👏 [...] Your course is bringing my inner math nerd 🤓 out and I love it!!! [...] I really like the use of the calculator on the screen. [...] You're a great teacher!"
- T.P.
100% Satisfaction Guarantee
If you buy and you’re not satisfied, you’ll get...
7-day money-back guarantee — if you're not satisfied, email [email protected] within 7 days of purchase and you will get a full refund, provided fewer than 3 modules have been accessed
Watch one of the lessons FREE:
Grab a sneak peek into the course and watch one of the first lessons on Youtube and grab the worksheet that goes with it, here. In the lesson, Sara explains every step of the calculation process and includes a summary at the end.
FAQs
How long will I have access?
1 year from your date of purchase. Need more time? Contact [email protected] before your access expires to arrange an extension for a small fee.
What if I change my mind?
Due to the digital nature of the product, I offer a 7-day money-back guarantee. If you're not satisfied, email [email protected] within 7 days of purchase and you will receive a full refund, provided fewer than 3 modules have been accessed.
How do I reach out if I have any further questions?
Email [email protected].
What format are the lessons?
All lessons and solution walkthroughs are pre-recorded video lessons, available instantly upon enrollment. Watch on your own schedule, pause and rewind as many times as you need. There is also a text summary of each lesson in each module, which includes relevant screenshots from the videos for quick review.
Can I download the worksheets?
Yes — all practice worksheets are available to download so you can use them digitally on a laptop or tablet* or print them and work through problems by hand on paper.
*Sara loves the app Notability for importing PDFs and writing directly onto them using a tablet and stylus.
What if I get stuck on a worksheet?
Every problem in every worksheet has a complete video walkthrough so you can see exactly how each one is solved. If you have additional questions, you can reach me at [email protected].
Do I need any prior knowledge to take this course?
No — this course is designed for students at all levels. Whether you feel confident in some areas and shaky in others, or want a complete review from the ground up, you can start anywhere and work at your own pace.
Will I get to meet Sara's cat?
You'll have to enroll to see! ;)
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