If you’ve ever stared at your CAS portfolio thinking, “This should count… right?”, you’re not alone.
The tricky part of IB CAS isn’t doing meaningful things. It’s classifying them correctly, then proving they mattered with reflections. In exam season, that confusion becomes expensive: you don’t just lose time, you risk building a portfolio that looks busy but doesn’t meet requirements.
This guide makes the distinction simple: what counts as a CAS experience, what counts as a CAS project, and how to choose options that won’t hijack your revision schedule.

IB CAS in 60 seconds: a quick checklist
Use this filter before you log anything in IB CAS:
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Is it Creativity, Activity, or Service? (At least one strand.)
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Is it intentional? (Not just routine life admin.)
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Is there evidence? (Photos, planning notes, feedback, a product, or a record.)
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Is there reflection? (Without it, it’s basically invisible.)
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Is it a project or an experience? (Duration + collaboration + planning decides.)
If you want the wider “how to do CAS without losing your grades” strategy, keep this bookmarked: How to Excel in the IBDP CAS Program.
What counts as a CAS experience in IB CAS?
A CAS experience is a meaningful activity you do under Creativity, Activity, or Service. In IB CAS, an experience can be a one-off event or something you repeat over time. The key is that it creates growth you can explain and connects to at least one CAS learning outcome.
Examples of CAS experiences
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Creativity: attending a short filmmaking workshop, writing a poem series, designing posters for a school event
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Activity: training for a 5K, joining a weekly basketball session, learning a new fitness routine
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Service: helping at a food drive, tutoring a younger student for a term, participating in a community clean-up
The “experience” signals
In IB CAS, an experience usually has:
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Flexible duration (can be once or ongoing)
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Solo OR group participation
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A smaller planning burden (you can join an existing opportunity)
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Evidence of at least one learning outcome
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A reflection that shows change, not just description
If reflections are your weak spot, this helps you upgrade fast: IB CAS: 10 Tips for a Standout Reflection.
What counts as a CAS project in IB CAS?
A CAS project is the “bigger arc” inside IB CAS. It’s not just doing something helpful. It’s planning something, doing it over time, and doing it with other people.
The defining requirements students forget are simple:
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Collaboration is required (you cannot do it entirely alone)
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It must last at least one month (planning + action)
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It should show multiple learning outcomes (often five of the seven is used as a strong benchmark)
Examples of CAS projects
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Planning and running a month-long peer fitness group (Activity)
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Organising a fundraiser campaign with a team (Creativity + Service)
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Building a weekly tutoring program with a small group of classmates (Service)
A good CAS project is basically: a mini-startup with a reflection trail.

CAS project vs CAS experience: the differences that matter
When people get stuck in IB CAS, it’s usually because they’re relying on vibes. Use these hard boundaries instead:
Duration
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CAS project: at least one month
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CAS experience: can be one session or ongoing
Collaboration
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CAS project: must be collaborative
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CAS experience: can be solo
Structure
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CAS project: intentional planning, roles, timeline, adjustments
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CAS experience: can be simpler or pre-structured (you join and participate)
Learning outcomes
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CAS project: should hit multiple outcomes clearly
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CAS experience: can demonstrate one outcome well
And yes, in IB CAS you must complete at least one CAS project to satisfy the programme requirements.
Common IB CAS mistakes (especially during exam prep)
Most CAS problems aren’t moral failures. They’re calendar failures.
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Calling routine chores CAS. If it’s “normal life maintenance,” it usually won’t hold up.
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Equating attendance with impact. Turning up is not the same as planning, growth, or challenge.
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Writing reflections months later. Late reflections become vague, and vague reflections get questioned.
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Treating a one-day event as a project. Great experience, not a project.
Here’s the uncomfortable truth of IB CAS: if you don’t reflect properly, the coordinator can’t verify learning. If you want to understand the stakes, read: What Happens If You Don’t Submit a CAS Reflection?.

How to plan IB CAS without sacrificing your exam grades
The best IB CAS plan is boring in the right way: fewer decisions, more consistency.
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Pick 2--3 anchor experiences you can sustain with low effort.
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Choose one project with a clear four-week arc (plan, deliver, reflect, close).
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Keep reflections short and frequent so they don’t pile up.
If CAS is currently colliding with revision, build a weekly system using: How to Create a Balanced IB Study Schedule and How to Balance CAS with Academics and Social Life.
And when academics need to come first, use RevisionDojo as your “single home base”: Study Notes to clarify content fast, Flashcards for daily recall, Questionbank sets to convert study time into marks, AI Chat when you’re stuck, and Mock Exams plus Predicted Papers to build exam timing. If coursework stress is leaking into everything, the Grading tools and Coursework Library help you tighten feedback loops, and Tutors can simplify the hardest topics quickly.
The simple way to keep IB CAS compliant (and your brain calm)
In IB CAS, the goal isn’t to do more. It’s to do what counts, document it cleanly, and protect your exam preparation.
Choose experiences that fit your real life. Build one month-long collaborative CAS project with a clear plan. Then use reflections to show growth like a student who pays attention to patterns.
When you want everything in one place--CAS planning, study structure, and exam practice--use RevisionDojo. The less time you spend juggling systems, the more energy you keep for the work that actually moves your grades.