Landing on the Neighbours
A 50-minute Grade 4 lesson on costs and benefits that fall on people who were never part of the exchange.
Landing on the Neighbours is a free 50-minute Grade 3 to Grade 5 social studies lesson plan for Common Core standard D2.Eco.8.3-5 — give examples where a choice affects people who were not part of it. 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:
- 50 minutes
- Standard:
- D2.Eco.8.3-5
Grade 3 to Grade 5 · Economics
D2.Eco.8.3-5
Identify examples of external benefits and costs.
Objective
Students will be able to identify an external effect, name who bears it, and classify it.
Students are successful when they can
- Names who is outside the deal.
- Classifies the effect as cost or benefit.
- Distinguishes it from a cost the buyer agreed to.
What you need
- The health table and the harbour return
- Twelve effect cards
- The printable practice sheet linked at the end of this plan
The lesson
Warm-up — who agreed to this?
5 min- A shipper pays dues and lands timber. Ask who else the landing affects.
- Collect names before sorting them.
Teach — inside the circle, outside it
17 min- Draw a circle: shipper and harbour board inside, everybody else outside.
- Put roads worn by carts to the quay outside. A cost, borne by ratepayers who shipped nothing.
- Put the harbour light outside. A benefit, to vessels that pay no dues here.
- Contrast with the dues themselves: a cost, but agreed. Inside the circle.
- Take the mill district's death rate. Crowding raises deaths in streets nobody built for.
- Say the test: did this person agree to any part of the deal?
- Add the policy question: who should pay for an external cost, and why it is hard.
“Did this person have any say in the deal at all?”
Guided practice — sort and assign
15 min- Pairs sort twelve effect cards into external cost and external benefit.
- They set aside anything inside the circle.
- For three, they name who should bear the cost, and justify it.
Independent practice
10 min- Students complete the 'Landing on the Neighbours' page.
- Check the person affected is genuinely outside the exchange.
Close
3 min- Name one external effect of something the school does.
What goes wrong, and why
Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.
Calls the dues an external cost.
Why: It is money leaving somebody.
Fix: The shipper agreed to them. External means falling on somebody who did not.
Thinks external effects are always harmful.
Why: Cost is the memorable half.
Fix: A school raising a district's literacy is external too, and a benefit.
Names an effect with no person attached.
Why: The effect is easier to see than the sufferer.
Fix: Insist on a name: the ratepayer, the neighbouring street, the vessel that pays no dues.
If they are not there yet
- Six cards, three of each kind.
- Give the person and ask whether the effect helps or harms them.
If they finish early
- Find an effect that is a cost to one group and a benefit to another.
- Say who should pay for the roads worn by harbour traffic.
- Name an external effect of the emigration trade.
Exit ticket
Crowding near the mill raises deaths in neighbouring streets. Why is that an external cost?
What to look for: Those neighbours agreed to no part of the mill's business. Answers about it being sad miss the agreement test.
Printable practice for D2.Eco.8.3-5
Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.
- Landing on the NeighboursSort each effect into cost or benefit.
Questions about Landing on the Neighbours
How long does the Landing on the Neighbours lesson take?
50 minutes, split across 5 timed sections: warm-up 5 min, teach 17 min, guided practice 15 min, independent practice 10 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 Landing on the Neighbours teach?
D2.Eco.8.3-5 — D2.Eco.8.3-5, Economics for Grade 3 to Grade 5: “Identify examples of external benefits and costs.” In plain terms, give examples where a choice affects people who were not part of it.
What do I need to teach this lesson?
The health table and the harbour return, twelve effect 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: calls the dues an external cost; thinks external effects are always harmful and names an effect with no person attached. 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: “Crowding near the mill raises deaths in neighbouring streets. Why is that an external cost?.” Those neighbours agreed to no part of the mill's business. Answers about it being sad miss the agreement test. 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 Landing on the Neighbours?
Yes — 1 printable D2.Eco.8.3-5 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 Landing on the Neighbours 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.Eco.8.3-5 of the C3 Framework for Social Studies State Standards.