It's a little ironic that I've already planning the (un)planning presentation that I plan to give at tonight's TeachMeet at Durrington High School. The slides are embedded above so that those at the event, and others, can access the links to read in more detail if they wish.
It's a collection of ideas mainly.
What's important is that (un)planning is not my idea, and means not planning the outcomes that students come up with. Thank you to other geographers for the inspiration behind this, in particular Noel Jenkins.