A thesis statement is a clear statement of your position in an argument essay. It sums up your topic, your position, and a brief "why" for your argument. This sentence generally appears at the end of your introduction.
A strong thesis:
For more on thesis writing, view Grand Prarie Regional College's guide to The Writing Process and these examples and myths about thesis statements.
They Say / I Say: Moves that Matter in Academic Writing
St. Martin's Guide to Writing
Writing Research Papers
The Handbook of Academic Writing
Academic Writing