There were two main aims for the session, firstly and primarily to provide an introduction to Scrum for people new to the subject area but also to provide an example of a practical hands on learning experience which others may be able to use themselves in their own coaching efforts.
The basis for the session was the Lego Scrum simulation created by Alexey Krivitsky back in 2008. You can find more details on that here http://www.lego4scrum.com/. In general though, the session provides a practical learning experience, enabling participants to learn about Scrum by seeing and experiencing it in action.
We've been using a variation of this game now where I work for a while now to help create an increased awareness and understanding of Scrum across the organisation, including both technology and non-technology business areas. The response to these in-house sessions has been really positive with feedback including: