Lesson 3 — Many Causes, Many Consequences

Summary

Learners build the historian’s habit of looking for multiple causes and multiple consequences. A big change rarely has one cause or one result; it has many, some intended and some unintended. They learn and practice the diagram that holds this thinking, readying them to apply it to a real change next lesson.

Objectives

• Analyze a change in terms of multiple causes and multiple consequences, including intended and unintended results. (D08.S1.07.02)

Connection

Why did you end up at this school, or learn to ride a bike, or make the friend you made? The honest answer is almost never “one reason.” It was a mix — a family move, a neighbor’s kindness, a lucky moment, a wish you had. And each of those choices set off other things you did not plan. History is the same. A big change — an invention that spreads, a people that migrates — has many causes, and many consequences, some of which nobody saw coming. The historian’s job is to look for all of them, not just the famous one.

Materials

• Cause-and-consequence diagram
• Statement cards

Preparation

• Copy the diagram and statement cards.
• Have the worked example ready: “a new road opened through a village” — causes (need to move goods, money and labor, a decision by leaders), consequences (faster travel, new shops, more noise, some families displaced).

Facilitator note

This lesson is written to the learner (“you”). The ideas to land: (1) a major change has multiple causes; (2) it has multiple consequences; (3) some consequences are intended, some are not, and consequences fall on different people unequally. Model the worked example explicitly before independent work (Kirschner, Sweller & Clark, 2006); this is a skill, and skills are taught with a worked example and guided practice. The critical-thinking lens: resist single-cause and single-effect stories — they flatten the real, tangled past. The global lens: the same change looks different from different places; a road is a blessing to a trader and a loss to a displaced family, and both views are true. The egalitarian lens: always ask who gains and who is left out of a consequence — consequences are not shared equally. The technology lens: inventions are a frequent “change” in this frame, and their spread (next lesson) is a model case of many causes and consequences. Keep it concrete; the abstract diagram is earned through the familiar examples first.

Procedure

1. Gather (5 min). Quick recall: what is a calendar’s “year one”? (A choice a people makes.) Today we learn to see that big changes, like calendars, have many causes — not one.
2. Meet the diagram (10 min). Look at the diagram. On the left: causes (the things that make a change happen). In the middle: the change. On the right: consequences (the results). Notice there are many on each side.
3. Worked example (10 min). Follow along as we fill the diagram for “a new road opened through a village.” Causes: people needed to move goods, money and labor were available, leaders made a decision. Consequences: faster travel (intended), new shops (partly intended), more noise and some families moved from their homes (unintended, and not shared equally).
4. Practice with cards (20 min). With a partner, sort the statement cards into causes and consequences for a given change, then build your own diagram for a change you know — a new phone, a bridge, a festival that grew. Mark one consequence as intended and one as unintended.
5. Close (5 min). Check each other: did you find more than one cause and more than one result? Tomorrow we apply this tool to a real, world-changing invention: paper.

Differentiation

• Support: Work only with the worked example, using sentence starters (“One cause was…”, “One result was…”); identify intended vs. unintended with a partner.
• Extension: Rank which cause mattered most and defend the ranking; add a consequence that would fall on a different group of people.

Assessment

• Formative (observation/peer): Can the learner produce at least two causes and two consequences for a change, and distinguish an intended from an unintended result?
• Peer-check: Partners trade diagrams and add one cause or consequence the other missed, then explain why it counts.

Home connection

Pick one change in your home or neighborhood (a new shop, a road, a device). List two causes and two consequences of it, and ask someone at home if they can add a third.

Resources

• Multiple causation and intended/unintended consequences are core historical-thinking concepts; for a classroom-friendly framing, see the historical-thinking resources of the Stanford History Education Group (sheg.stanford.edu), which treat sourcing and causality as teachable skills. The claim that consequences fall unevenly on different people is a fairness commitment (docs/philosophy.md §4), not a factual finding.
• On explicit instruction and worked examples for novice skills: Kirschner, Sweller & Clark (2006), https://doi.org/10.1207/s15326985ep4102_1