The simple PowerPoint presents students with an image which has six separate panels for them to investigate. Only by exploring each in turn can the true meaning of the document be established. Groups of three or four work on each and either annotate their own version electronically or, more likely, come to the front to annotate and explain to the rest of the class. Once all the six presentations have been completed, ask the class to predict the likely date and provenance of the source, prior to writing an interesting and definitive caption.
The accompanying PowerPoint provides all the resources you need