This sentence sets out something to be proven in the paragraph and is more
appealing to the reader. Yes, the paragraph will tell the story of the family’s
fishing trip, but it will do so in a way which proves the trip to have been enjoyable.
Furthermore, establishing a contention improves appeal by challenging the reader
to respond to what is said. Finally, establishing this topic sentence limits the
perspective or angle which will be taken on the subject. Now supporting
information must be developed.