Supporting details provide more information about the topic. They are necessary to make the topic clearer and more forceful. Details come in the form of examples, definitions, descriptions, or facts.
Details in a paragraph often answer the five WH questions: who, what, why, where, when, and how.
If your topic sentence is:
Technology is used in classrooms to enhance learning.
Then you may ask questions such as:
Who? Who uses technology?
What? What kind of technology is used to enhance learning?
Why? Why is technology used to enhance learning?
When? When did technology first begin to be used?
How? How is it used?
*Use details that support topic sentence.