Is the author's position clearly stated in his/her thesis? Are the three reasons for the author's position clearly stated there as well? If not, suggest how it could be improved.
Does each topic sentence clearly state which reason that paragraph will be discussing? If not, suggest how it could be improved.
Does each paragraph back up the author's position with good support. Where /how could this be improved?
How is the author's introduction? Which type of opening technique does the author use to start the essay? Could this be done better? Suggest a better way to open the essay if the author's is not satisfactory.
How is the author's conclusion? Does he/she restated the thesis and add some new dimension to the argument?