• Brainstorming paper divided in two columns
• Problem statement clearly displayed
• Timer

Identify a problem students will solve. Frame the reverse question. Create two-column template: 'How to cause the problem' | 'Solution (reverse)'. Practice facilitation.

1. Present the problem: 'Our school cafeteria creates too much waste.'
2. Explain reverse brainstorming: Instead of solving the problem, we'll make it WORSE. Then we'll flip our ideas.
3. Reverse question: 'How could we make cafeteria waste as bad as possible?'
4. Brainstorm ways to cause maximum waste (5-7 min):
5. Use only non-recyclable materials
6. Make portions way too big so food gets thrown away
7. Don't have any recycling bins
8. Serve unpopular food no one will eat
5. Now flip each idea to a potential solution:
6. Use only compostable or recyclable materials
7. Offer smaller portions with option for seconds
8. Place clearly labeled recycling bins everywhere
9. Survey students about food preferences
6. Review solutions: Which are most practical? Most impactful?
7. This technique works because it's easier to think of how to cause problems - then solutions emerge naturally.
8. Star your top 3 solutions.
9. Groups share best ideas. Compile class solution list.
10. Extension: Create action plan for top solutions.

Model several reverse-to-solution examples. Work in pairs for brainstorming. For advanced students, apply to more complex or abstract problems.

Evaluate creativity in reverse brainstorming. Check that reversals are logical solutions. Look for novel ideas that wouldn't emerge from direct brainstorming. Note most promising solutions.