Good morning students; I have had a number of conversations with students this week, in which it is clear that there is some confusion about a rhetorical thesis.
A rhetorical thesis is an argument, and not simply a description.
For example, this is NOT a thesis:
"In this paper, I will compare a poem A with a Poem B and explore the differences in their attitude towards the government". This is just a topic; it is not an argument.
A better example of an argument might be:
"In this paper, I will argue that poem A represents the last time people were truly optimistic about society, and that Poem B represents the moment this optimism became pessimism." Or some other argument!
Bottom line: your essay must make an argument.
Hope this helps!