What is CAS?

Creativity, Activity, Service

CAS is one of the three elements in the IB core Diploma Programme, along with TOK and the Extended Essay. It involves students in a range of enjoyable and significant experiences, as well as a CAS project. 

How is CAS structured? 

The three strands of CAS, which are often interwoven with particular activities, are characterised as follows:

• Creativity – arts, and other experiences that involve creative thinking.

• Activity – physical exertion contributing to a healthy lifestyle, complementing academic work elsewhere in the DP.

• Service – an unpaid and voluntary exchange that has a learning benefit for the student. The rights, dignity and autonomy of all those involved are respected.

​What is the significance of CAS?

CAS complements a challenging academic programme in a holistic way, providing opportunities for independent goal setting, collaboration, accomplishment and enjoyment. 

IB guidance on CAS:

Successful completion of CAS is a requirement for the award of the IB Diploma. Students reflect on their experiences and provide evidence of achieving the seven learning outcomes. 

• Length: 18 months and a balance between creativity, activity and service. 

• Three formal documented interviews throughout the two years. 

• Reflection is central to building a deep and rich experience in CAS. 

• A CAS portfolio serves as evidence of the student’s engagement with CAS. 

A good CAS programme should be both challenging and enjoyable – a personal journey of self‑discovery.