• Chairs arranged in two concentric circles
• Discussion prompt cards
• Observation forms for outer circle
• Background reading materials on environmental issues and economic development
• Timer
• Optional: 'Entry ticket' (one empty chair in inner circle)

Prepare thought-provoking questions about environmental ethics. Create observation forms with categories like 'evidence used', 'respectful disagreement', and 'building on others' ideas'. Assign students to initial inner/outer circles.

1. Before the fishbowl: Assign pre-reading about environmental issues and economic development. Have all students prepare notes with evidence-based arguments.
2. Set up the room with 8-10 chairs in an inner circle and remaining chairs in an outer circle.
3. Explain the process:
4. Inner circle actively discusses the topic
5. Outer circle silently observes and takes notes on the observation form
6. Everyone will have a chance in both circles
4. Start the first round (10-12 minutes):
5. Post the initial question: 'Does economic development necessarily harm the environment?'
6. Inner circle engages in discussion, citing evidence from readings
7. If using an entry ticket, students from outer circle can temporarily join inner circle when they have something to add
5. Pause for outer circle feedback (3-4 minutes):
6. Outer circle shares observations about discussion quality, not content
7. Highlight effective discussion techniques observed
6. Switch circles and continue with a new question (10-12 minutes):
7. 'What responsibility do developed nations have toward developing nations regarding environmental regulations?'
7. Final reflection: Have students write about how the discussion changed or reinforced their viewpoint, citing specific points made by classmates.

For students who need support, provide discussion sentence starters. For classes new to the format, start with a fishbowl demonstration using a small group of prepared students. For advanced groups, add roles like 'devil's advocate' or 'synthesizer'.

Use observation forms to assess speaking and listening standards. Evaluate students' final reflections for critical thinking and evidence-based reasoning.