You could eliminate the first sentence in your essay entirely.
Beyond that, a good way to shorten an essay while making it stronger is to eliminate an over-reliance on forms of "to be." So, for instance:
"The school that I visited
was very distant; a five hour long car ride along an old bumpy road
was what it took after the plane landed. Having arrived at the school, I
was shocked by what I saw. The situation
was far worse that what the images on TV had insinuated. The school
was dilapidated and appeared very fragile; the roof
was covered with rotten wood. One of the things that upset me the most
was talking to the children"
could be rewritten as
"After a five hour long car ride along an old bumpy road, I arrived at the school, where I could do little but stare in shocked horror. The dilapidated school appeared on the brink of collapse with its roof made of rotten wood and the steps up to the front door missing planks. An overwhelming stench arose from the outhouses behind it. Talking to the children upset me profoundly . . ."
Notice that the revised version is not only nine words shorter, but also contains two more specific details that you didn't include the original. Thus, the revised version paints a more vivid picture of the school by saying more, even though it uses fewer words.
Sean, EssayForum.com