Suggested answers. Many will vary with the live data, so check units and working. The curriculum links are a guide only.
For: jobs, trade and travel, shorter delays. Against: noise, emissions, loss of land, local disruption. Accept any reasoned points.
Answers will vary. Check for a clear opening claim, evidence, devices used on purpose, and a strong ending.
Examples: the number of planes landing per hour on the live stream; how big modern jets are; what contrails are. Pupils should say where the fact came from.
Look for a counter-argument that answers the first speech directly rather than starting again.