Overarching Societal Statements: Rather than using a traditional thesis statement you can put forth a societal observation that ties into the theme of your essay. This can be very effective if the statement is unique and gives a glimpse into how you view the world. It can be detrimental if your statement is debatable or unclear. Make sure that if you use this form of introduction that no admissions office will take offense to it.
If the appendix is "formal," it should contain a beginning, middle, and ending. For example, if the appendix contains tables of test data, the appendix should not only contain the tabular data, but also formally introduce those tables, discuss why they have been included, and explain the unusual aspects that might confuse the reader. Because of time constraints, your instructor might allow you to include "informal" appendices with calculations and supplemental information. For such "informal" situations, having a clear beginning, middle, and ending is not necessary. However, you should still title the appendix, place a heading on each table, place a caption beneath each figure, and insert comments necessary for reader understanding. (See a sample appendix .)