The penultimate (next to last) sentence should restate your basic thesis of the essay.Your final statement can be a future prediction based on what you have shown in the essay.These ideas don't need to be written as complete sentences in the outline; that's what the actual essay is for.
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.
Information technology has changed the time, place and manner in which we work.
In short, information technology has made the computer into our office.
After this first sentence, add your thesis statement.
The thesis clearly states what you hope to express in the essay.
Like making a hamburger, writing a good essay takes preparation. Your topic should be broad or common enough that most people will know at least something about what you're discussing.
In the middle, you'll find the hamburger itself. Think of it this way: Like the two pieces of a hamburger bun, the introduction and conclusion should be similar in tone, brief enough to convey your topic but substantial enough to frame the issue that you'll articulate in the meat, or body of the essay.
Topic Sentence (reason) #2: Because of dealing with such a rapidly changing work environment, 21st century workers need to learn how to learn.
Topic Sentence (reason) #3: Most of all, in order to negotiate rapid change and learning, workers in the 21st century need good communication skills.