The Hamburger Paragraph -- and Essay

In American elementary schools, many students are taught that a paragraph is a lot like a hamburger.

Why? Because it's easy to remember, and it's pretty much true.

Like a paragragh (or an essay) a hamburger has five parts:

1. The Top Bun
2. The Lettuce
3. The Tomato
4. The Meat
5. The Button Bun

So how are these parts like the parts of an essay? Let's start with the The Top Bun