Brainmapping combines two tools. From Mind-mapping it takes the picture: a problem in the center with branches radiating out. From Brainwriting it takes the method: silent writing on pages that pass around a group. The result is a set of mind maps, each one drawn by many hands.
Its special feature is that every person can bring a different problem. Each writes their own challenge in the middle of a page. On the first circuit, pages pass around the circle and each person adds one main branch: a single word or phrase that opens a direction. On the second circuit, people grow those branches with sub-branches and concrete ideas. Then each map goes home to its owner.
It's quiet, fair and efficient. In half an hour, every person in the circle gets help from everyone else, and gives help in return.
Use it when several people each have a problem they'd like help with, as in a class, a peer-support group or a workshop, or when a team prefers quiet, written work to a loud brainstorm.