These rules are proven to make for an effective but also efficient Brainstorm.
Some resources for other ideation tools:
During an ideation session, the ideas develop from the passion and energy of the team. In order to learn which ideas appear to be the most exciting from this situation, it is good to have the team make a selection on precisely this basis – their gut feeling! And always only for as long as the ideas are still „fresh“. So right after the session.
Participants get small sticky dots. Each participant gets 3 or 5 dots. They should distribute these among the ideas on the walls. They can give several ideas one dot each or several of their dots to one idea. But ask them to do this individually, not as a group.
In this way it is often possible to see immediately where there have been highlights of the brainstorm.