Use case
Measurements
Measurement tasks answer a single quantitative question a model cannot resolve from a website.
Keep it simple and public
One quantity, one method (count, tape, or estimate), and a photograph that shows the thing counted. No entry to private property, no climbing, no traffic exposure.
Example task
Count how many stalls are set up at the Saturday market and photograph the row from the public street.
Evidence required:
- measurement (stall count)
- 1 photograph
- written observation
- location confirmation