The structure of a text refers to the way the author organizes the

information. It's how a piece of writing is put together.

Signal words provide clues about which text structure is present. A text

may have more than one text structure.

These are the five main text structures:

Description

A descriptive text provides descriptive details or examples. It tells the who,

what, when, where, why, and how.

Compare and Contrast

A compare-and-contrast text uses comparisons to describe ideas to

readers. It tells how things are similar or different.

Problem and Solution

A problem-solution text identifies one or more problems and presents one

or more solutions.

Cause and Effect

A cause-and-effect text explains cause-and-effect relationships. It tells why

something happened (the cause) and what was the result (the effect).

Sequence

A sequence or order text structure lists items or events in order, or in

sequence. Chronological texts present events in time order, from beginning

to end. How-to texts organize information in a series of steps or directions.

Sleep is important to our health. But many people have trouble falling asleep. What can you do? Experts say your sleep environment matters. Your room should be cool, dark, and quiet.
Sleep is important to our health. But what happens when we fall asleep? First, we fall into a light sleep. Next comes deep sleep. Lastly, people enter the REM stage where dreams often occur.
Sleep is important to our health. Doctors say one positive effect of a good night's sleep is having more energy. Another is being able to think more clearly.

In the above text, the structure seems to be Problem and Solution. The problem presented is that many people have trouble falling asleep, and the solution provided is to create a sleep-conducive environment. The text also presents the cause and effect relationship of sleep on health, with the cause being a good night's sleep and the effects being increased energy and improved mental clarity. The sequence structure is also present, as it lists the stages of sleep in order.