If this is for highschool, you'd be looking at a fail.
Main things:
Check spelling more carefully, I saw a bunch of errors in there.
Introduction is bland and doesn't say what you're going to be talking about.
None of the paragraphs lead into eachother.
There's only 4 paragraphs (It's fine in some situations... but this isn't one of them)
The conclusion doesn't really conclude anything...
One of the many stupid things:
QUOTE
Our constitution has also been a model for many other constitutions around the world.
Really? Which nations and how? When writting an essay, it's customary to say something, and then back it up with examples and logical statements. Especially since, you know, the constitution is loosly based on the ten commandments (I learned this in Law class, I'm asuming it's true), which means other constitutions aren't inspired by America's constitution, but by the morals of judio-christianism (or whatever it's called).
Also, I don't believe the constitution is a plan of government, it just lays out the ground rules for statutes and common law (anything not constitutional is illegal).
To be fair, I've never studied America's constitution, but some of this is just so ridiculous I don't believe it.
Unless you're specifically instructed, for you own benifit you should do 5 paragraph essays by the book (so to speak).
PS: If this is your first essay, don't worry about it, they'll help you get better.