The focus of IB students and their CAS activities is to meet the 8 Learning Outcomes at least once.
Learning Outcome #4 is stated as: Worked collaboratively with others.
Clarifying explanation: Collaboration can be shown in many different activities, such as team sports, playing music in a band, or helping in a kindergarten. At least one project, involving collaboration and the integration of at least two of creativity, action and service, is required.
I interpret Learning Outcome #4 as “students need to get involved in an activity where they are forced to work closely with other students (non IB students are ok), and the activity needs to include at least 2 of the 3 categories of Creativity, Action, and Service.”
This Learning Outcome also should be of significant duration, meaning it should last at least a few months at a minimum.