By using the proper techniques, parents can significantly improve the learning capabilities of their preschool children. Each of these sentences lets the reader know what is to follow, and also takes an immediate stand on the issue being addressed. Frank Lloyd Wright was a great architect. Small-town living is boring. Myths serve an important function in society.
Parents are important to their children's development.
Note how these are less specific, more passive, and more obvious. There's no life to the language. Sentences like these will convince your reader to find something else to do.