Sensitivity note: This lesson covers the Holocaust and the atomic bombings of Hiroshima and Nagasaki. Content is factual and age-appropriate - no graphic imagery. The purpose is to understand scale and significance, and why individual governments cannot be trusted to protect human rights alone.
Phase 2 · Lesson 2-4

Atrocities - The Scale of Human Cost

9H
9U
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Learning objectives

  • Understand the scale of WWII atrocities - Holocaust and atomic bombings
  • Explain why these events made international human rights law necessary
  • Begin to see why the UN was formed

Lesson sequence

TimeStageTeacher notes
0–5 min Hook Question on board: 'Can a government do whatever it wants to its own people?' Brief discussion - collect responses. Do not answer yet.
5–18 min Input Teacher-led: The Holocaust - 6 million Jewish people, systematic state-organised genocide. Atomic bombings - Hiroshima 6 Aug 1945 (~80,000 killed instantly), Nagasaki 9 Aug 1945. Total WWII civilian deaths: ~40 million. Key message: these were not accidents - they were decisions made by governments. Factual, measured delivery. No graphic imagery.
18–28 min Task Task sheet: Part A - scale facts organiser (numbers, events, decisions). Part B - response question: Why did these events show that individual governments could not be trusted to protect human rights alone? 35-minute lesson - keep this tight.
28–33 min Discussion Return to the hook question: 'Can a government do whatever it wants to its own people?' Now they have the evidence. What would need to exist to prevent this? Surface: international law, independent oversight, a global body. This is the bridge to lesson 2-5.
33–35 min Exit Exit ticket: Complete the sentence - 'The events of WWII showed that the world needed _______ because _______.' Collect.

Differentiation

Scaffolding Sentence frame for exit ticket provided. Response question has guided sub-questions.
Extension What was the Nuremberg Trials? What principle did they establish about individual responsibility?
Cultural sensitivity Some students may have family connections to WWII history. Acknowledge this possibility at the start - 'This history may be personal for some of you. That's okay.'

At a glance

ConceptsCausation, Empathy, Global Citizenship
CurriculumNZ Social Sciences Y9–10 / Aotearoa Histories

Teacher notes

  1. 35-minute lesson - pace carefully. Input must be tight.
  2. No graphic imagery. Factual and measured delivery throughout.
  3. The Nuremberg Trials are extension only - do not introduce to the whole class unless time allows.
  4. Exit ticket is the bridge to lesson 2-5: the need for international human rights law and the UN.

Timetable

ClassDatePeriodMins
9H2026-05-14P135m
9U2026-05-14P535m