Each should contain a single main idea, following the outline you prepared earlier.
Use two or three sentences to support the main idea, citing specific examples.
Follow that with a sentence to introduce your body paragraphs.
This not only gives the essay structure, but it also signals to the reader what is to come.
The thesis is the position you're taking in relation to your topic or a related issue.
It should be specific enough that you can bolster it with just a few relevant facts and supporting statements.
Information technology has changed the time, place and manner in which we work.
In short, information technology has made the computer into our office.
Also, the way we work has changed greatly through the introduction of information technology into the workplace.
Once you've written the introduction, it's time to develop the meat of your thesis in three or four paragraphs.