Ready-to-use classroom activity
Student groups work to reach agreement on a complex issue, using structured protocols to ensure all voices are heard.
Grade range
Works across
Activity style
Classroom walkthrough
One concrete example you can borrow, adapt, or teach as written.
Example lesson context
Gather these before class.
What to have ready before students begin.
Create a moon colony design challenge with specific requirements and constraints. Develop resource cards with scientific facts about the moon environment. Prepare a consensus protocol guide outlining the steps for reaching agreement. Create role cards for group members (facilitator, recorder, timekeeper, harmony monitor). Design a tracking sheet for documenting decisions and compromises.
A classroom-ready sequence from launch to follow-up.
Introduction to consensus (7-8 minutes):
Define consensus as finding solutions everyone can support, even if not everyone's first choice
Distinguish from voting (which can leave people feeling unheard)
Discuss real-world examples where consensus is valuable
Introduce the consensus scale: 1 (strong opposition) to 5 (strong support)
Moon colony challenge briefing (10 minutes):
Present the challenge: 'Design a self-sustaining moon colony for 200 people'
Review key constraints: limited resources, harsh environment, need for air/water/food/energy
Explain the required design decisions:
Colony location (crater, lava tube, or open plain)
Primary energy source (solar, nuclear, or combination)
Colony layout (centralized or distributed)
Food production system (type and method)
Governance structure
Clarify that all decisions must be made by consensus
Individual position formation (8-10 minutes):
Students review resource cards independently
Complete individual position worksheets with their preferred choices and rationales
Rate how strongly they feel about each decision (1-5 scale)
Group formation and role assignment (5 minutes):
Organize students into groups of 4-5
Assign or have groups select member roles
Distribute consensus tracking sheets
Review protocol for respectful discussion
Consensus building process (25-30 minutes):
For each design decision, follow structured protocol:
Round 1: Each person briefly shares their position and reasoning (no interrupting)
Round 2: Clarifying questions only (no debate yet)
Round 3: Discuss options, focusing on meeting everyone's core needs
Round 4: Propose possible solutions that incorporate multiple perspectives
Round 5: Test for consensus using 1-5 scale (seek 3 or higher from all members)
If consensus not reached, identify specific concerns and repeat from Round 3
Record each consensus decision and key compromises on tracking sheet
Move to next design element after reaching consensus
Colony design creation (10-15 minutes):
Based on consensus decisions, groups create visual design of their moon colony
Include annotations explaining key features and decisions
Reflection on consensus process (5-7 minutes):
Individual writing: 'What was most challenging about reaching consensus? What compromises did you make? How does your final design compare to your initial preferences?'
Optional sharing of reflections
Gallery walk of colony designs with guided questions about different approaches across groups.
Adjust the activity without losing its core purpose.
For groups struggling with the process, provide a simplified decision matrix with fewer options. For advanced groups, add complexity with emergency scenarios that require rapid consensus. For students who struggle with social dynamics, provide specific sentence starters for expressing agreement, disagreement, and compromise.
Use these signals to assess understanding.
Evaluate groups' consensus tracking sheets for evidence of consideration of multiple viewpoints. Review final designs for feasibility and incorporation of scientific concepts. Assess individual reflections for insights about the consensus process and personal growth.