Start a balanced CAS programme with clear goals
Build sustained experiences across creativity, activity and service with a practical evidence plan.
Understand the programme before choosing activities
CAS develops learning through creativity, physical activity and service alongside academic study. The IB subject brief describes regular involvement for at least 18 months, a reasonable balance across the strands and at least one collaborative project lasting a month or more. Completion also requires evidence of the seven learning outcomes. Read your school's handbook and meet the coordinator early. Ask about approval, supervision, documentation and local arrangements. Plan sustained engagement and learning; do not replace these requirements with an invented universal hours quota.
Begin with interests and possible growth
Write what you already enjoy and where you would like to develop. An experienced musician might explore arranging rather than merely repeating familiar practice. A student who enjoys walking might choose a purposeful physical challenge suited to their circumstances. Someone interested in books could investigate a community's reading needs before proposing service. Starting from genuine interests makes participation more sustainable, but the planned experience still needs a learning purpose. Note the challenge, intended change and practical support you would need.
Check the fit of each experience
Explain which strand or strands the experience engages and why. Discuss suitability with your coordinator before beginning substantial commitments. Work used to satisfy another DP course requirement cannot simply be reused as CAS. Consider supervision, access, costs, safety and the rights of others. For service, identify an authentic need with the people involved rather than assuming that your preferred activity will benefit them. Be willing to adapt the idea after listening. A modest local experience can provide meaningful learning.
Try a worked term plan
An illustrative student chooses three ongoing directions: developing a small set of original illustrations, following an agreed swimming practice goal and supporting a community group's book-sorting sessions. Each has a different learning purpose and an achievable routine. The student first confirms availability and approval, then records a starting point and relevant evidence. After several weeks, swimming access changes; the student discusses a suitable alternative with the coordinator. The plan stays balanced through deliberate adjustment rather than treating a disrupted activity as a failed programme.
Make documentation serve learning
For each experience, keep a short record of the purpose, starting point, actions and significant learning moments. Agree what evidence is appropriate. A photograph can show an event occurred but may not demonstrate a change in collaboration or judgment; a reflection or relevant product can help explain that change. Preserve privacy and seek permission where needed. Use the school's learning-outcome guidance to review coverage over the programme. Do not force every outcome onto every experience merely to make a colourful tracker.
Review commitment at regular intervals
At a practical interval, ask what you are learning, which commitments remain manageable and where the programme needs development. Look for a meaningful project opportunity rather than leaving it until the end. Raise difficulties early and bring your current evidence to coordinator discussions. CAS should connect to your life while extending it through purposeful experiences. A workable plan leaves room for enjoyment, reflection and unexpected opportunities. Its success is shown by authentic involvement and learning that you can explain, not by the size of the initial activity list.
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Official references
This is an original practical guide from IBvia. The examples are illustrative; your subject guide, assessment year and school instructions determine the requirements.
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Choose CAS experiences that have a purpose
Adapt creativity, activity and service ideas around your interests, starting point and community needs.
Read the guide ↗
Design a CAS project idea around collaboration
Turn an appealing idea into a purposeful project with shared roles, learning and realistic scope.
Read the guide ↗