Georgia SS5H4.c

Social Studies5th GradeHistorical Understandings

The Standard

Discuss President Truman's decision to drop the atomic bombs on Hiroshima and Nagasaki.

Georgia Standards of Excellence for Social Studies · Explain America's involvement in World War II.

Teacher's field guide

What Students Need to Do: Students explain why Truman approved using atomic bombs and identify the alternatives his advisers considered. They discuss military goals, possible casualties, Japan’s surrender, and the harm to civilians.
What Mastery Looks Like: Students can give two reasons supporters cited and one criticism of the decision. They use facts from sources and recognize that historians still debate whether the bombings were justified.
Common Misconceptions: Students may think Hiroshima and Nagasaki were military bases with no civilians. They may also assume the bombs alone ended the war, ignoring Soviet involvement and other pressures on Japan.
How to Assess It: Use this exit ticket: Give two reasons Truman approved the bombings, one human cost, and one alternative he could have considered.

Lesson moves

Sort evidence cards into military reasons, political reasons, civilian costs, and alternatives, then use them to build a class decision chart.
Write a paragraph answering: Was Truman’s decision justified, based on the evidence available to him in August 1945?
Play an evidence match game by pairing claims about Truman’s decision with supporting facts from short primary and secondary sources.
Examine the Hiroshima Peace Memorial website, then write how the bombings are remembered today and why nuclear weapons remain debated.

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