Originally a reflection was a remark made after looking back on something or some event.

One way to reflect and trigger memory is to use visualization techniques.

In the IBO document “Creativity Action Service: Additional Guidance” (2012, page 9) there is a clear statement that “students are free to choose their own way of demonstrating evidence of reflection”.

This app made by Cesar Kuriyama might help you to visualize and summarize, and in doing so demonstrate evidence of your ‘looking back’ at 18 months of your CAS activities.