Maritime and Land Border Disputes

Active learning works because border disputes are inherently spatial, legal, and political. Students need to visualize claims, negotiate perspectives, and weigh consequences rather than memorize facts about lines on a map. These activities turn abstract disputes into concrete decisions where students directly engage with geography, law, and ethics.

• 10th Grade
• Geography
• 3 activities
• 20 min–45 min

Learning Objectives

1. Analyze the competing claims and legal arguments in the South China Sea maritime dispute.
2. Evaluate the ecological and economic impacts of border walls and fences on regions like the US-Mexico border.
3. Compare and contrast the causes and consequences of maritime versus land border disputes.
4. Predict how climate change and resulting migration patterns might reshape future land border disputes.
5. Synthesize information from legal texts, geographic data, and news reports to form an argument about resolving a specific border dispute.

Case Study Analysis

⏱ 25 min·Pairs

Map Analysis: South China Sea Claims

Students examine an annotated map of the South China Sea showing overlapping national claims, island features, and shipping lanes. In pairs, they identify the geographic basis for each claim, discuss what resources are at stake, and analyze why the dispute has been difficult to resolve through international arbitration.

Prepare & details

Analyze the primary causes of maritime border disputes in the South China Sea.

Facilitation Tip: During Map Analysis: South China Sea Claims, have students trace each claimant’s maritime zones using colored pencils to highlight overlapping areas and reinforce spatial thinking.

Setup: Groups at tables with case materials

Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template

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

Case Study Analysis

⏱ 45 min·Small Groups

Simulated Negotiation: Maritime Boundary Dispute

Assign groups to represent different claimant states in a South China Sea scenario. Each group reviews their assigned country's geographic position and strategic interests, then participates in a structured negotiation round. The class debriefs on which geographic arguments proved most persuasive and why consensus was difficult to reach.

Prepare & details

Explain how walls and fences affect the ecosystems and economies of border regions.

Facilitation Tip: In Simulated Negotiation: Maritime Boundary Dispute, assign roles with distinct interests so students experience both the constraints and flexibility of international law.

Setup: Groups at tables with case materials

Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template

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

Think-Pair-Share

⏱ 20 min·Pairs

Think-Pair-Share: Walls, Fences, and Ecosystems

Present data on the ecological and economic effects of the US-Mexico border wall on wildlife corridors and cross-border communities. Partners discuss the tradeoffs between border security goals and environmental costs, then share their analysis with the class to build a broader discussion about unintended consequences of border hardening.

Prepare & details

Predict the future of border disputes in a world facing climate-induced migration.

Facilitation Tip: For Think-Pair-Share: Walls, Fences, and Ecosystems, provide a blank U.S.-Mexico border map with labeled wildlife corridors so students can physically mark fragmentation points.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Teaching This Topic

Teach this topic by moving from the concrete to the abstract: start with maps and case studies, then layer in legal frameworks like UNCLOS, and finally ask students to reflect on ethical implications. Avoid starting with theory, as students need to first see why borders matter to real people, ecosystems, and economies. Research shows that simulation and spatial analysis build deeper understanding than lectures alone.

What to Expect

Success looks like students accurately interpreting maps, distinguishing legal arguments from military posturing, and recognizing the ecological impacts of borders. They should move from seeing disputes as simple conflicts to understanding them as layered negotiations of law, geography, and power.

Watch Out for These Misconceptions

Common Misconception

During Map Analysis: South China Sea Claims, watch for students assuming that China’s control of islands gives it the strongest claim.

What to Teach Instead

Use the map layers to point out that UNCLOS grants territorial seas and exclusive economic zones based on distance from shore, not on which state occupies the most features. Remind students of the 2016 arbitration ruling that invalidated the nine-dash line.

Common Misconception

During Think-Pair-Share: Walls, Fences, and Ecosystems, watch for students assuming border barriers only stop people.

What to Teach Instead

Have students trace animal migration paths on the border map and ask: What happens when a fence blocks a pronghorn’s route to water? Use this to redirect them to ecological fragmentation as a key impact.

Common Misconception

During Simulated Negotiation: Maritime Boundary Dispute, watch for students assuming wealthy or powerful countries always win disputes.

What to Teach Instead

Prompt students to cite specific UNCLOS articles or historical precedents during the negotiation. Afterward, ask: Was the outcome based on wealth or on legal and geographic arguments? Refer to the Norway-Russia Barents Sea case as a counterexample.

Assessment Ideas

Discussion Prompt

After Simulated Negotiation: Maritime Boundary Dispute, facilitate a class debate where students represent claimant states and must justify their legal arguments using UNCLOS principles. Assess understanding by listening for references to territorial seas, exclusive economic zones, and historical use.

Exit Ticket

After Think-Pair-Share: Walls, Fences, and Ecosystems, ask students to write two sentences explaining how a hardened border could disrupt wildlife migration and one sentence on how it might affect local economies.

Quick Check

During Map Analysis: South China Sea Claims, provide a fictional maritime dispute case study. Ask students to identify whether it is a land or maritime dispute and one key factor driving the conflict. Review answers as a class to check for accuracy.

Extensions & Scaffolding

• Challenge early finishers to draft a short position paper from the perspective of a non-claimant state (e.g., the U.S.) on how it should respond to the South China Sea dispute.
• Scaffolding: Provide sentence stems for students during the negotiation simulation, such as "Our claim is strongest because..." or "We propose a compromise that..."
• Deeper exploration: Have students research a historic border dispute (e.g., Cod Wars, Beagle Channel) and compare its resolution to modern cases.

Key Vocabulary

Exclusive Economic Zone (EEZ)	A maritime zone extending 200 nautical miles from a country's coast, within which the country has sovereign rights to explore and exploit natural resources.
Territorial Sea	A belt of coastal waters that extends at most 12 nautical miles from the baseline of a coastal state, over which the state has sovereignty.
UN Convention on the Law of the Sea (UNCLOS)	An international agreement that establishes the rights and responsibilities of nations in their use of the world's oceans, including defining maritime boundaries.
Sovereignty	The supreme authority within a territory, including the right to govern and control its own territory and population.
Climate-induced migration	The movement of people from one place to another due to the impacts of climate change, such as sea-level rise, desertification, or extreme weather events.