Answer:
Development by illustration
Illustrations, instances, and examples are used as evidence or proofs to substantiate the idea contained in the topic sentence. Examples familiar to the reader carry their own explanation and contribute vividness and concreteness to the paragraph.
Here is a paragraph developed by three examples to support the writer's opening statement:
The difference between the scientist and the layman is frequently the ability to draw conclusions from simple phenomena. Thus, people have seen apples from trees for centuries; but to Isaac Newton, this act stimulated him to thought. Eventually his theory of gravitation developed. From observing the swinging of a lantern in a cathedral, Galileo was stimulated to develop his theory about pendulums. More recently, Fleming, by pausing to consider the origin of a ring around a mold, eventually discovered penicillin. It takes the trained mind to see the relation between cause and effect, and thus come upon an important scientific discovery.
by: Agnes