A topic, idea, person, place, or thing is described by listing its features, characteristics, or examples.
Signal words can include: to illustrate, characteristics, an examples, such as, to begin with, for instance, not only...but also
The writer describes items or events in order or tells the steps to follow to do something or make something.
Signal words can include: first, second, next, then, before, after, finally, following, now, soon, later
The writers shows how two or more things are alike and/or how they are different
Signal words can include: same as, similar, alike, as well as, both, not only...but also, instead of, either...or, different from, as opposed to, on the other hand