Four Million Homes, and After
A 55-minute Grade 5 lesson on how a country decides what to rebuild after a catastrophe, and who waits.
Four Million Homes, and After is a free 55-minute Grade 3 to Grade 5 social studies lesson plan for Common Core standard D2.Geo.9.3-5 — work out how a disaster changes where people live and where they move. It is timed across 5 sections, gives the exact wording to use where the wording carries the mathematics, names 3 misconceptions with the teaching move that addresses each, and ends with an exit ticket and a printable worksheet with its answer key.
- Grade:
- Grade 3 to Grade 5
- Length:
- 55 minutes
- Standard:
- D2.Geo.9.3-5
Grade 3 to Grade 5 · Geography
D2.Geo.9.3-5
Analyze the effects of catastrophic environmental and technological events on human settlements and migration.
Objective
Students will be able to explain how a catastrophe reshapes settlement through the decisions taken afterwards.
Students are successful when they can
- Predicts a settlement change after a catastrophe.
- Says who waits and why.
- Names the decision that shaped the outcome as much as the event.
What you need
- The white paper's four million figure
- The council report and event cards
- The printable practice sheet linked at the end of this plan
The lesson
Warm-up — four million
5 min- Read the figure and ask what a country does next.
- Take the first answers.
Teach — the event, then the decisions
18 min- The event destroys; the decisions afterwards decide what returns.
- Allocation by damage meant bombed cities first and villages waiting.
- Cleared land meant some districts were rebuilt to a new plan, not the old one.
- Ask who waited: those whose homes stood, however crowded, and those in undamaged places.
- Ask who moved: families offered a home on a new estate, sometimes far from their street.
- Say the Grade 5 point: a catastrophe sets the problem, and policy sets the outcome.
- Take a slow catastrophe by contrast: a shortage that empties nothing but delays everything.
“What did the event decide, and what did people decide afterwards?”
Guided practice — event and decision
17 min- Groups take four events and separate what the event caused from what policy caused.
- For each they name who waited.
- Groups say which record would show the effect.
Independent practice
12 min- Students complete the 'Four Million Homes, and After' page.
- Watch for answers that give the event all the credit.
Close
3 min- Ask what a country's rebuilding choices reveal about it.
What goes wrong, and why
Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.
Thinks the catastrophe alone shaped the outcome.
Why: It is the dramatic cause.
Fix: The same destruction with different policy produces a different city.
Assumes everybody moved.
Why: Disaster suggests displacement.
Fix: Most stayed and waited. Ask who could not move and why.
Thinks only sudden events count.
Why: Disaster means sudden.
Fix: A materials shortage delayed as much building as any single raid.
If they are not there yet
- Two events with the decision named.
- Give a movement and ask which event or decision caused it.
If they finish early
- Say what a different allocation rule would have produced.
- Find a catastrophe that increased a settlement.
- Explain why some districts were rebuilt on a new plan.
Exit ticket
Four million homes were damaged. Name one thing the destruction decided and one thing policy decided.
What to look for: The scale of the need was set by the bombing; where rebuilding went first was set by the allocation rule. Only the event means the policy half is missing.
Printable practice for D2.Geo.9.3-5
Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.
- Four Million Homes, and AfterCircle the best answer.
Questions about Four Million Homes, and After
How long does the Four Million Homes, and After lesson take?
55 minutes, split across 5 timed sections: warm-up 5 min, teach 18 min, guided practice 17 min, independent practice 12 min, close 3 min. The minutes are stated per section and add up to the stated length, so the plan can be cut or extended at a section boundary rather than abandoned halfway.
Which standard does Four Million Homes, and After teach?
D2.Geo.9.3-5 — D2.Geo.9.3-5, Geography for Grade 3 to Grade 5: “Analyze the effects of catastrophic environmental and technological events on human settlements and migration.” In plain terms, work out how a disaster changes where people live and where they move.
What do I need to teach this lesson?
The white paper's four million figure, the council report and event cards and the printable practice sheet linked at the end of this plan. Everything listed is either ordinary classroom equipment or a free printable from this site — there is nothing to buy and nothing to prepare beyond photocopying.
What mistakes should I expect in this lesson?
Three, each a reasoning error rather than carelessness: thinks the catastrophe alone shaped the outcome; assumes everybody moved and thinks only sudden events count. The plan gives the thinking behind each one and the teaching move that addresses the thinking rather than the symptom.
How do I know whether the lesson worked?
The exit ticket asks: “Four million homes were damaged. Name one thing the destruction decided and one thing policy decided.” The scale of the need was set by the bombing; where rebuilding went first was set by the allocation rule. Only the event means the policy half is missing. That tells you whether the class needs a reteach or a thirty-second conversation before you plan tomorrow.
Is there a worksheet to go with Four Million Homes, and After?
Yes — 1 printable D2.Geo.9.3-5 worksheet, linked at the end of the plan and free like the rest of the site. Each one comes with an answer key and 25 versions, so the practice after the lesson can be a different paper on every desk.
Is Four Million Homes, and After free to use?
Yes. The plan, its printables and their answer keys are free to read, print and photocopy for your own class, with no account and no email capture. It was last reviewed on 7 September 2026. Please do not resell it or republish it as your own.
Last reviewed 2026-09-07. Aligned to D2.Geo.9.3-5 of the C3 Framework for Social Studies State Standards.