Canadian & World Studies · Grade 12

Active learning ideas

Sources and Principles of International Law

Dive into the complex 'rules of the game' for the entire planet. This topic explores the legal framework that governs how nations interact, from trade and environmental protection to peace and conflict.

• Ontario Curriculum Expectations
• Ontario Curriculum: CLN4U - A. Legal Foundations

• 50–90 min
• Pairs → Whole Class
• 3 activities

Activity 01

• Jigsaw
• 60 min · Small Groups

Treaty Analysis Jigsaw

In small 'expert' groups, students analyse a specific section of a treaty to which Canada is a party (e.g., the Ottawa Treaty on landmines). Groups then re-form into 'jigsaw' groups to teach their section to peers, piecing together a comprehensive understanding of the treaty's purpose and obligations.

Identify the primary sources of public international law.

Facilitation Tip

Provide a graphic organizer to guide students' analysis of their treaty section.

What to look for

An exit ticket asking students to identify the two main sources of international law and provide a real-world example of each.

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

Activity 02

• Socratic Seminar
• 50 min · Whole Class

Sovereignty on Trial: A Debate

Students participate in a formal debate on the motion: 'Resolved, that state sovereignty is an outdated concept that hinders progress on global issues like human rights and climate change.' This encourages them to articulate and defend arguments for and against the primacy of sovereignty.

Explain the concept of state sovereignty and its significance in the international legal order.

Facilitation Tip

Assign students to specific roles, such as representatives of different countries, to ensure a variety of perspectives are heard.

What to look for

A case study analysis where students examine a real international dispute (e.g., South China Sea) and write a legal brief identifying the relevant parties, applicable sources of international law, and arguments related to state sovereignty.

• Analyze
• Evaluate
• Create
• Social Awareness
• Relationship Skills

Activity 03

• Socratic Seminar
• 90 min · Pairs

Customary Law Case Study

In pairs, students research a case from the International Court of Justice that relied heavily on customary international law, such as the North Sea Continental Shelf cases. They will create a short presentation explaining the dispute and how the court identified and applied customary law.

Analyse the role of international organizations in the creation and interpretation of international law.

Facilitation Tip

Provide a curated list of accessible case summaries to focus student research efforts.

What to look for

Students use a rubric to assess their own participation in a class debate on international law, evaluating their use of evidence and understanding of key concepts.

• Analyze
• Evaluate
• Create
• Social Awareness
• Relationship Skills

A few notes on teaching this unit

Start with a relatable analogy, like the unwritten rules of a school cafeteria, to introduce the idea of law without a central police force. Use current events, such as a recent UN resolution or trade dispute involving Canada, to make abstract principles like sovereignty and treaty obligations tangible. Introduce the formal sources of law from the ICJ Statute as a structured framework to organize these real-world examples.

Students will be able to identify where international law comes from and critically analyse the constant tension between a country's right to rule itself and its obligations to the global community.

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Watch Out for These Misconceptions

• International law has a global police force and jail system just like domestic law.

  Unlike domestic law, international law lacks a centralized enforcement body. Enforcement relies on state consent, reciprocity, political pressure, sanctions, and specialized tribunals like the International Criminal Court, whose jurisdiction is limited.

• The United Nations creates all international laws.

  The UN is a vital forum for negotiating and creating treaties, but it does not legislate for the world. The primary sources of international law are treaties, which are agreements voluntarily signed by states, and customary practices that states follow out of a sense of legal obligation.

• State sovereignty means a country can do absolutely anything it wants inside its own borders.

  While sovereignty grants states supreme authority within their territory, it is not absolute. It is limited by obligations a state voluntarily accepts through treaties (e.g., human rights conventions) and by peremptory norms of international law (*jus cogens*), such as the prohibition of genocide.

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Methods used in this brief

• Jigsaw
• Socratic Seminar