Organising the CAS Portfolio (DP IB Creativity, Activity, Service): Revision Note

Dr Dean West

Written by: Dr Dean West

Reviewed by: Alistair Marjot

Updated on

How should students structure and format their CAS portfolio?

Flexibility and choice in formatting

  • The method used for the portfolio is generally up to you unless your school has a specific policy

  • You are encouraged to choose a format that suits your individual student learning style to increase engagement and ownership

  • The best system is one that you can maintain consistently throughout the 18-month programme

Structural options for the portfolio

Within ‘Experiences’, you can organise entries by timeline, strand, or learning outcome — choose what you can maintain consistently

  • Timeline:

    • This involves organising your reflections and evidence chronologically as they occur

  • Strand:

    • This involves structuring the portfolio around the three categories of Creativity, Activity and Service

  • Outcome:

    • This involves grouping your work according to the seven CAS learning outcomes

Various portfolio formats

  • Digital portfolios:

    • Using online platforms such as blogs, websites or video logs

  • Physical formats:

    • Maintaining a traditional diary, journal or scrapbook

  • Blended approach:

    • Combining both digital and physical elements to showcase your journey

  • The Profile:

    • The section where you map your interests, skills, talents and personal goals at the start of the programme

  • Experiences:

    • A chronicle of your journey incorporating reflections, learning moments and your use of the CAS stages

  • Evidence:

    • The collection of supporting materials such as planning documents, photos, certificates and supervisor reports

Examiner Tips and Tricks

Evidence without reflection is just a record. For every photo, certificate, or document you upload, add a short reflection explaining what you did, what you learned, and what you would do differently next time.

Maintaining the portfolio

  • You must keep the portfolio up to date as it serves as the main evidence for your three formal CAS interviews

  • A well-maintained portfolio allows you to demonstrate your growth and the achievement of all seven learning outcomes to your CAS coordinator

Examiner Tips and Tricks

The easiest way to fall behind in CAS is treating the portfolio like an “end-of-year job”. Set a simple routine (e.g., a short update every week or fortnight) so your reflections and evidence are always ready for interviews.

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Dr Dean West

Author: Dr Dean West

Expertise: Content Writer

Dr Dean West is a UK-based educator, Principal Examiner and assessment specialist. He leads IB CAS and the Extended Essay at Bromsgrove School, where he also coordinates and teaches IB Business Management. A Chartered Teacher and Chartered Educational Assessor, he has examined for WJEC, Cambridge International and Edexcel, consulted for Ofqual and the British Council. He holds a PhD in Education from the University of Warwick.

Alistair Marjot

Reviewer: Alistair Marjot

Expertise: Environmental Systems and Societies & Biology Content Creator

Alistair graduated from Oxford University with a degree in Biological Sciences. He has taught GCSE/IGCSE Biology, as well as Biology and Environmental Systems & Societies for the International Baccalaureate Diploma Programme. While teaching in Oxford, Alistair completed his MA Education as Head of Department for Environmental Systems & Societies. Alistair has continued to pursue his interests in ecology and environmental science, recently gaining an MSc in Wildlife Biology & Conservation with Edinburgh Napier University.