Which Discipline Answers It?
A 45-minute Grade 3 lesson on choosing which social studies discipline a real problem belongs to.
Which Discipline Answers It? is a free 45-minute Grade 3 to Grade 5 social studies lesson plan for Common Core standard D4.6.3-5 — use what you have learned to explain the problems people face and the chances they make. 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:
- 45 minutes
- Standard:
- D4.6.3-5
Grade 3 to Grade 5 · Communicating Conclusions and Taking Informed Action
D4.6.3-5
Draw on disciplinary concepts to explain the challenges people have faced and opportunities they have created, in addressing local, regional, and global problems at various times and places.
Objective
Students will be able to say which discipline a question belongs to and what it would ask next.
Students are successful when they can
- Matches a question to a discipline.
- Says what that discipline would ask next.
- Finds a question that needs two disciplines.
What you need
- Four discipline headings: civics, economics, geography, history
- Eight question cards about the valley
- The printable practice sheet linked at the end of this plan
The lesson
Warm-up — one railway, four questions
5 min- Ask four different questions about the same railway.
- Ask what makes them different kinds of question.
Teach — what each discipline asks
15 min- Civics asks about power and consent: who decided, and who agreed?
- Economics asks about costs and benefits: who gains, who pays?
- Geography asks about land and routes: why here, and what moves?
- History asks about change and sources: how did we get here, and who says so?
- Sort four cards, saying what the discipline would ask next in each case.
- Take a question needing two, and show how each contributes a different part.
“What would this discipline want to know next?”
Guided practice — sort and continue
13 min- Pairs sort eight questions under the four headings.
- For four, they write the next question that discipline would ask.
- Groups present a question that needed two disciplines.
Independent practice
9 min- Students complete the 'Which Discipline Answers It?' page.
- Check the reason names the kind of question, not the topic.
Close
3 min- Ask which discipline the class has used most this term.
What goes wrong, and why
Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.
Sorts by topic rather than by question.
Why: The topic is the visible word.
Fix: 'Money' is not automatically economics. Ask what kind of question is being asked about it.
Thinks a question belongs to one discipline only.
Why: Sorting implies exclusivity.
Fix: Who should decide about the line is civics and economics at once. Say what each adds.
Cannot say what comes next.
Why: Naming the discipline feels like the answer.
Fix: Naming it is only useful if it tells you what to ask. Write the next question.
If they are not there yet
- Four questions and two disciplines.
- Give the next question and ask which discipline asked it.
If they finish early
- Write one question in each discipline about the same event.
- Say which discipline the sources serve best.
- Find a problem no single discipline can handle.
Exit ticket
'Why did the line follow the valley floor?' Which discipline is that, and what would it ask next?
What to look for: Geography, followed by a question about gradients, routes or where the land allowed building. A discipline with no next question means the second half is missing.
Printable practice for D4.6.3-5
Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.
- Which Discipline Answers It?Draw a line from each question to the discipline it belongs to.
Questions about Which Discipline Answers It?
How long does the Which Discipline Answers It? lesson take?
45 minutes, split across 5 timed sections: warm-up 5 min, teach 15 min, guided practice 13 min, independent practice 9 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 Which Discipline Answers It? teach?
D4.6.3-5 — D4.6.3-5, Communicating Conclusions and Taking Informed Action for Grade 3 to Grade 5: “Draw on disciplinary concepts to explain the challenges people have faced and opportunities they have created, in addressing local, regional, and global problems at various times and places.” In plain terms, use what you have learned to explain the problems people face and the chances they make.
What do I need to teach this lesson?
Four discipline headings: civics, economics, geography, history, eight question cards about the valley 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: sorts by topic rather than by question; thinks a question belongs to one discipline only and cannot say what comes next. 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: “'Why did the line follow the valley floor?' Which discipline is that, and what would it ask next?.” Geography, followed by a question about gradients, routes or where the land allowed building. A discipline with no next question means the second 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 Which Discipline Answers It??
Yes — 1 printable D4.6.3-5 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 Which Discipline Answers It? 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 D4.6.3-5 of the C3 Framework for Social Studies State Standards.