For review, this is an example of outline form.
I. Main point (This is the main topic of the answer)
a. Subpoint #1 (This is detailed point #1 of the answer)
b. Subpoint #2 (This is detailed point #2 of the answer)
c. Subpoint #3 (This is detailed point #3 of the answer)
II. Conclusion (This is the concluding sentence which summarizes what you have said above)
Third, the outline form keeps an answer concise, focused, and easily understood by the listener/reader. Sometimes, you may be tempted to just make random detailed points, without a direction. The result of this is that the reader/listener may lose track of what you are trying to say. By actually saying/writing “first,” “second,” ”third,” and “in conclusion,” the reader/listener has no choice but to follow along with your statements.
Be sure not to skip numbers. You cannot say “First….,” and then followed by “Third,….” without a “Second….” It seems like an obvious point but sometimes this occurs.
In conclusion, organizing your thoughts and then your sentences using the outline form helps you as the speaker/writer, and the listener/reader. That will gain you points when you are taking the TOEIC. Look at this blog entry: I have used my own technique in making my points to you. Hopefully, it is clear.