Vermont Grade 6 Social Studies

A departure list and an arrival list disagree

Two invented records describe a fictional exchange route. A departure list counts 18 boats leaving Port Cedar during one week. An arrival list counts 12 boats reaching Port Willow during that week. A student claims that six boats were lost. Decide whether the records support that conclusion. The ports and records are fictional; this is a source-comparison exercise, not an account of ancient trade.

Follow the reasoning

The difference between the totals is six, but the lists count different events. A boat leaving near the end of the week might arrive in the following week. A boat arriving on Day 1 might have departed before the departure list’s window. The records also do not say that every Cedar boat was bound for Willow or that the lists use the same rules for counting repeated journeys. A cautious explanation reports 18 departures and 12 arrivals in their separate records and does not convert the difference into six losses. To investigate missing journeys, obtain destination details, linked boat identifiers, travel dates, and information about the completeness of each list. In a historical trade inquiry, check who made a record and why before using it to explain barriers or successful exchange.

Check the explanation’s limits

The example does not establish wrecks, piracy, weather, a trade barrier, or economic decline. Those explanations require separate evidence. A numeric record can be relevant and still have a limited purpose or incomplete coverage. Vermont’s linked draft gives a curriculum-planning context; it is not proof that these invented counts describe a real route.

Try the next step

1. Name the event and time window counted by each record.
2. Check whether journeys can be matched across the lists.
3. Write a limited conclusion and identify missing sources.

Suppose a third record identifies the same 18 boats, confirms that all were bound for Willow, and shows that six arrived during Days 8–10. Explain how that changes the loss claim without assuming that every possible journey has now been documented. With a teacher, compare authentic dated records for one selected place and period; keep differences in source purpose visible.

Connect the activity to further study

Selected framework references: D3.1.6-8, D3.2.6-8. Read each complete band indicator before planning instruction.

Read the supporting source: Read Vermont’s grade-specific curriculum-support file (labeled draft). Distinguish the source’s purpose and date from the classroom example.

Choose additional practice for a concept that needs explanation. General lessons and quizzes can include review or enrichment beyond this course; match them to the school’s current topic.