To enable CAS worksheets, you must first create an IB curriculum group (Go to MyGroups > Create a Group) and invite IB candidates to join. Once you have done that, you can activate the CAS worksheet in Group Settings, which will allow them to start recording activities.
In your IB curricula group, click the CAS link on the sub-navigation bar, and select the student whose CAS worksheet you wish to view.
First, make sure you have joined the correct IB curriculum group for your class year. These are often named “IB Class of 2007” or “CAS for Year 2007”. Once you have found your group, make sure you’re a member, and click the CAS link on the dark blue sub-navigation bar, where you will see an “Add CAS Activity” button.