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When you write a proposal argument, you should begin by demonstrating that a problem exists. In some cases, readers will be familiar with the problem, so you will not have to explain it in great detail. For example, it would not take much to convince students at your university that tuition is high or that some classrooms are overcrowded. Most people also know about the need to provide health care to the uninsured and to reduce the rising level of student debt and are aware of other problems that have received a good deal of media attention.
Other, less familiar issues need more explanation—
Students who do not have high school diplomas earn substantially less than those who do.
Studies show that high school dropouts are much more likely to live in poverty than students who complete high school.
Taxpayers pay for the social services that dropouts often require.
Federal, state, and local governments lose the taxes that dropouts would pay if they had better jobs.
When you explain the situation in this way, you show that a problem that appears to be limited to just a few individuals actually affects society as a whole.
How much background information you need to provide about a problem depends on how much your readers already know about it. In many cases, a direct statement of a problem is not enough: you need to explain the context of the problem and then discuss it with this context in mind. For example, you cannot simply say that the number of databases to which your college library subscribes needs to be increased. Why does it need to be increased? How many new databases should be added? Which ones? What benefits would result from increasing the number of databases? What will happen if the number is not increased? Without answers to these questions, readers will not be able to understand the full extent of the problem. (Statistics, examples, personal anecdotes, and even visuals can also help you demonstrate the importance of finding a solution to the problem.) By presenting the problem in detail, you draw readers into your discussion and motivate them to want to solve it.