A "brainstorming tool" is a method or aid that helps people generate creative ideas and solve problems by encouraging collaboration and free-thinking. Full definition
Mind maps are also great brainstorming tools, as they allow online learners to reflect on different facets of the subject matter. (elearningindustry.com)
It's a natural brainstorming tool that everyone understands and works well for groups. (entrepreneur.com)
It helps when choosing a romantic partner, and it can be a great brainstorming tool, too. (inc.com)