Reading Maps, Timelines & Historical Change — Practice · Grade 7 Social Studies

Chapter: Historical Inquiry & Indigenous Nations

What this practice covers

By the end of Reading Maps, Timelines & Historical Change you should be able to:

8 questions, written answer, each with a worked explanation.

Vocabulary used: context, primary source, interpretation, scale, continuity.

Problem 1

Why is a modern highway map insufficient for locating an eighteenth-century journey?
Answer and explanation

The route network and boundaries may differ. Use a dated map or evidence of the roads, paths, waterways, and political conditions relevant to the journey.

Problem 2

Does unmarked land prove nobody lived there?
Answer and explanation

No. Absence from a particular map is not proof of absence from the landscape. The map’s creator, detail, and purpose limit what can be inferred.

Problem 3

Does the 36-year interval show that the canal caused the war?
Answer and explanation

No. Subtracting dates gives elapsed time only. A causal explanation needs evidence about mechanisms and competing influences.

Problem 4

Why must a comparison identify its measure?
Answer and explanation

Different measures answer different questions. Total residents and eligible voters cannot be directly treated as the same count; specify categories and relevant exclusions.

Problem 5

Invented map exercise: a route is marked as 6 cm long along the drawn path; the map scale is 1 cm to 20 km. A modern straight-line measurement is 90 km. Calculate the modeled route length and explain why it need not match the straight-line figure.
Answer and explanation

The stipulated route is 6×20=120 km. A winding route can be longer than 90 km of straight-line separation. This assumes the path measurement and scale are correct; neither value alone establishes travel time or historical access.

Multiply the supplied path measurement by its scale.

Keep the result in kilometers.

Distinguish route length from straight-line separation.

Response criteria

  • Describe the historical context and institutions accurately.
  • Connect relevant evidence with an explained claim or calculation.
  • Represent particular perspectives without stereotypes or invented testimony.
  • Identify an assumption, evidentiary limit, or distinction that qualifies the conclusion.

Problem 6

A timeline spaces 1776, 1787, and 1861 equally. Are the intervals equal?
Answer and explanation

No. The intervals are 11 years and 74 years. Equal spacing can be an ordering aid if labeled; it is not a proportional time scale.

Response criteria

  • Describe the historical context and institutions accurately.
  • Connect relevant evidence with an explained claim or calculation.
  • Represent particular perspectives without stereotypes or invented testimony.
  • Identify an assumption, evidentiary limit, or distinction that qualifies the conclusion.

Problem 7

What century contains 1825?
Answer and explanation

The nineteenth century, covering 1801–1900 under the standard CE century convention.

Problem 8

What two checks should precede a map-distance calculation?
Answer and explanation

Check that the scale applies to the image and that the measured distance follows the intended route or straight-line definition.

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