One minute introducing the two texts and the global issue.
Two minutes explaining how and why the writer uses form and content to present the global issue in Text 1 as a whole.
Two minutes explaining how and why the writer uses form and content to present the global issue in the extract from Text 1.
Two minutes explaining how and why the writer uses form and content to present the global issue in the Text 2 as a whole.
Two minutes explaining how and why the writer uses form and content to present the global issue in the extract from Text 2.
One minute conclusion
Then 5 minutes discussion on the two texts and the global issue.