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IB CAS: How to Get Started and Plan Your Activities

IB CAS: How to Get Started and Plan Your Activities

3 min read | Lanterna Team | January 27, 2026

Learn how to get started with IB CAS, plan your activities effectively, and write high-quality CAS reflections with this expert guide.

CAS can be as daunting and intimidating as it can be inspiring. It’s an opportunity to do all the cool stuff you’ve wanted to do. CAS is your chance to convince your parents that video games might *genuinely* be school relevant. But what is it, and how do we get started with it correctly? We will, in this post, look at what you can do to prepare yourself for a year of productive CAS experiences.

What Is CAS?

Simply put, CAS (creativity, activity, service) is the IBO’s attempt at making their students live life a little during their studies. It forces you to try new things and reflect on how those make you grow as a person. Every experience will target one of the seven learning outcomes, which you will demonstrate through writing reflections.

If you want some excellent examples of what activities can look like, check out our blog post that offers 100 CAS ideas.

Set Up a CAS Plan

Once you have familiarised yourself with what CAS is and how it works, set up a rough plan for which activities you will get done and when. This plan can always be subject to change, but it is good to have a rough idea of what you will be dealing with throughout your IB course. When you write a new activity on the plan, think about which category of creativity, activity or service it falls under and which learning outcome(s) you can target with this activity. Also, think about what your CAS project could be! It is an aspect of it that is often overlooked but vital to completing CAS.

Find YOUR Way of Writing CAS Reflections

Your teacher will probably guide you on where and how you have to write your reflections. Some do it digitally, and some write them by hand. Either way, there are a few things you need to consider.

  1. Be honest and self-examining. People can tell when your reflections oversell your achievements. And that’s not entirely the point with CAS, either. You do not have to convince people you have done something extraordinarily great. Reflect on what you have done and how it has helped you develop.
  2. Target a learning outcome in your reflections (either directly or indirectly). Quickly re-acquaint yourself with the learning outcome you meant to target with your activity before and consider how you can demonstrate that you have targeted it.
  3. Don’t be verbose. It is quality and not quantity that is crucial in your reflections. There is no need to write a whole essay if you can get your point across in a few sentences.

This blog post provides an in-depth rundown of reflections.

Make a Habit Out of It

Often people feel that CAS is challenging because they think they have to change their day-to-day to fit it in and that writing reflections is a hassle. It does not have to be that way. Make the activities easy for you to start, especially in stressed periods of IB.

You can also massively help yourself by setting up reminders to write regular reflections. It is vital to have regular updates in your CAS portfolio, so if you can get yourself in the habit of maybe writing a reflection every Sunday after football practise or every Thursday after dinner, you will be golden.

Remember, CAS is not your enemy. CAS can be your friend in the IB. We know how annoying it can seem, but it can be the best way to be active and do fun stuff you otherwise would deprioritise during your studies. Best of luck with it from us at Lanterna!

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CAS stands for Creativity, Activity, and Service. It's a core component of the IB Diploma Programme designed to encourage students to engage in a variety of experiences outside of academics, fostering personal growth, self-reflection, and a broader understanding of their role in the community.

The seven CAS learning outcomes are: identify own strengths and develop areas for growth; demonstrate that challenges have been undertaken, developing new skills in the process; demonstrate how to initiate and plan a CAS experience; show commitment to and perseverance in CAS experiences; demonstrate the skills and benefits of working collaboratively; demonstrate engagement with issues of global significance; and recognize and consider the ethics of choices and actions. All CAS experiences should aim to address at least one of these.

Start by familiarising yourself with CAS requirements and the learning outcomes. Create a rough plan of potential activities, considering what falls under Creativity, Activity, and Service, and which learning outcomes they might target. Remember to include a CAS Project. This plan can evolve, but having a starting point helps ensure you meet all requirements and make the most of your CAS journey.

The CAS Project is a collaborative, well-planned, and sustained initiative that students undertake, typically lasting at least one month. It involves teamwork and addresses a real need, often combining elements of Creativity, Activity, and Service. It's crucial because it demonstrates your ability to initiate, plan, and execute a significant project, showcasing several key learning outcomes.

Good CAS reflections are honest, self-examining, and directly link your experiences to the CAS learning outcomes. Focus on quality over quantity; clearly articulate what you did, how you developed, and what you learned. Avoid simply describing the activity; instead, reflect on its impact on you and others, and how it helped you grow.

Yes, under certain conditions, video games can count for CAS, particularly under the Creativity or Activity strands. For example, developing a game, participating in e-sports, or critically analysing game design could be valid. The key is to demonstrate clear learning outcomes, reflection, and often, a structured approach that goes beyond casual play.

Lanterna's expert tutors and Student Success Experts can provide guidance on every aspect of CAS. We can help you brainstorm activity ideas, plan your CAS project, understand the learning outcomes, and refine your reflections to ensure they meet IB standards. Our goal is to make CAS a meaningful and stress-free part of your IB experience.

The Lanterna IB consultation is a free, no-pressure 20-30 minute session with one of our experienced IB Student Success Experts. It's designed to help you get clarity on your IB situation, whether you're struggling with CAS, specific subjects, or overall workload.

Yes, absolutely! Our IB consultation is completely free of charge. There's no obligation to book tutoring afterwards. Our aim is to provide valuable guidance and a personalised plan to help you succeed in the IB, regardless of whether you choose to continue with our services.

Our Student Success Experts are highly experienced IB graduates and educators who understand the IB Diploma Programme inside out. They've guided thousands of students and parents, offering insights, strategies, and support to navigate the IB's challenges, including complex components like CAS.

After your free consultation, you'll walk away with a clear, personalised plan for what to focus on next, tailored to your specific needs and goals for CAS or any other IB area. You'll have a better understanding of your priorities and next steps, with zero obligation to book tutoring.


More free resources

50 IB CAS Project Ideas & Examples
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50 IB CAS Project Ideas & Examples

Find your perfect IB CAS project with our expert list of 50+ ideas. Explore examples for Creativity, Activity, Service, and combined projects to inspire you.

IB CAS Guide for Parents
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IB CAS Guide for Parents

IB CAS Guide for Parents: Understand Creativity, Activity, Service and learn how to help your child brainstorm ideas and manage logistics without taking control.

What is CAS? (Creativity, Activity, Service) Ultimate Guide
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What is CAS? (Creativity, Activity, Service) Ultimate Guide

What is CAS in the IB Diploma Programme? Get a complete overview of Creativity, Activity, Service, the three essential core elements all students must complete.

50 IB CAS Project Ideas with Examples
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50 IB CAS Project Ideas with Examples

Stuck on your IB CAS Project? Get inspiration from 50 expert-curated IB CAS Project ideas and examples covering Creativity, Activity, and Service strands.

Complete Guide to IB CAS Reflections
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Complete Guide to IB CAS Reflections

Master your IB CAS reflections with this complete guide. Learn what to include, methods of reflection, and how to build your crucial CAS portfolio for the IB Diploma.

100 Easy IB CAS Ideas: Complete Guide
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100 Easy IB CAS Ideas: Complete Guide

Find 100 Easy IB CAS Ideas: Creativity, Activity, Service inspiration from top IB experts. Make CAS fun and manageable alongside your IB studies.

50 IB CAS Ideas With Examples (Creativity, Activity, Service)
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50 IB CAS Ideas With Examples (Creativity, Activity, Service)

Need inspiring IB CAS Ideas? Learn how to start strong and keep your portfolio growing with 50 creative, fun, and achievable Creativity, Activity, Service examples.

How to make the most of IB CAS
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How to make the most of IB CAS

Learn how to make the most of your IB CAS experience with expert advice. Get inspiring ideas for Creativity, Activity, and Service projects to fulfil your Diploma requirements.


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