Practice question · Sort into groups
Sort each map choice: a mathematical layer or a rhetorical layer?
Groups: Mathematical layer · Rhetorical layer
- Deciding what sits at the centre of the sheet
- Choosing a conformal over an equal-area projection
- Drawing one border firm and another dotted
- How area scales with latitude on a cylinder
- Whether angles are preserved locally
- Which language the place names appear in
Hints
- One layer is mathematical, the other is a choice about presentation.
- Centring and orientation are not forced by geometry.
Show the answer
Mathematical layer: Choosing a conformal over an equal-area projection, How area scales with latitude on a cylinder, Whether angles are preserved locally
Rhetorical layer: Deciding what sits at the centre of the sheet, Which language the place names appear in, Drawing one border firm and another dotted
Why
Projection is only the mathematical layer. The rhetorical ones are simpler, louder, and usually doing more of the work.
Practise Maps and Projections
The app has 4 more questions on this lesson, and keeps your place in the course. History I is free to start.
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