Has this happened to you? You are typing away at your iPad only to find that several of your words are not even close to what you typed? It has happened to most of us.
My guess is that you have auto correction function turned on. Now I happen to like this feature. It does require me to go back and proofread what I wrote, but it saves me time in the long run.
To disable this feature, go to Settings > General > Keyboard and turn off Auto Correction. That should do the trick.