Computer Science · 9th Grade

Active learning ideas

Privacy vs. Security in Encryption Policy

Active learning works for this topic because the encryption policy debate hinges on technical precision meeting real-world stakes. Students need to practice weighing arguments that are emotionally charged but technically nuanced, which is best done through structured interaction rather than passive lecture.

• Common Core State Standards
• CSTA: 3A-NI-07
• CSTA: 3A-IC-24

• 30–60 min
• Pairs → Whole Class
• 3 activities

Activity 01

• Formal Debate
• 60 min · Small Groups

Format Debate: Encryption Policy Standoff

Divide students into groups representing different stakeholders (e.g., civil liberties advocates, law enforcement, tech companies). Each group researches and prepares arguments for a moderated debate on a specific encryption policy proposal. The debate focuses on justifying their positions based on privacy and security concerns.

Critique the balance between individual privacy and national security in encryption policy.

Facilitation Tip

During the Structured Academic Controversy, assign students roles as law enforcement advocates, civil liberties advocates, and neutral technical experts to force them to engage with counterarguments directly.

• Analyze
• Evaluate
• Create
• Self-Management
• Decision-Making

Activity 02

• Formal Debate
• 45 min · Pairs

Scenario Analysis: The Encrypted Evidence

Present students with a fictional case study involving encrypted communications relevant to a crime or national security threat. Students work in pairs to analyze the ethical dilemma: should law enforcement be able to compel access to the encrypted data, and what are the implications for privacy if they can or cannot?

Justify different perspectives on government access to encrypted communications.

Facilitation Tip

In the Socratic Seminar on Apple v. FBI, require students to reference the technical limitations of backdoors as described in the amicus briefs, not just emotional appeals.

• Analyze
• Evaluate
• Create
• Self-Management
• Decision-Making

Activity 03

• Formal Debate
• 30 min · Individual

Policy Proposal Creation

After exploring various perspectives, students individually draft a brief policy proposal outlining their recommended approach to encryption policy. They must include a justification that balances privacy and security, considering potential societal impacts.

Predict the societal implications of strong versus weak encryption policies.

Facilitation Tip

For the Congressional Hearing role-play, have students draft their opening statements in advance and circulate them for peer feedback before the live hearing.

• Analyze
• Evaluate
• Create
• Self-Management
• Decision-Making

A few notes on teaching this unit

Teachers should anchor discussions in specific technical facts, such as the difference between symmetric and asymmetric encryption, to prevent vague statements about 'security.' Avoid framing the debate as a binary choice between privacy and security; instead, emphasize the layered consequences of each policy option. Research shows that students grasp these trade-offs better when they analyze primary sources, like court documents or technical white papers, rather than secondary interpretations.

Successful learning looks like students distinguishing between technical feasibility and political claims, citing specific cryptographic principles in their arguments, and recognizing the trade-offs between privacy and security without defaulting to absolutist positions.

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Watch Out for These Misconceptions

• During the Structured Academic Controversy, watch for students claiming that a backdoor can be built to target only criminal communications without addressing the mathematical impossibility of selective access.

  Use the activity’s technical expert roles to redirect students to the Diffie-Hellman key exchange or public-key infrastructure examples, forcing them to explain why any backdoor weakens security for all users.

• During the Socratic Seminar on Apple v. FBI, watch for students reverting to the idea that strong encryption is only used by criminals.

  Have students reference the amicus briefs from the tech industry or civil liberties groups that cite real-world cases, such as domestic abuse survivors or journalists, to ground the discussion in data.

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Methods used in this brief

• Formal Debate