Why did the witches tell Macbeth these predictions?

in the thematic approach, an interpreter relies on a central theme (i.e., a major point or message) to guide development of a communication activity or device. in presenting the activity or device, the thematic interpreter develops the theme in such a way that it will be highly relevant to an audience.

explanation:

homework should not be banned because it tells the teacher if you were paying attention in class or not. it assures the teacher that you understand the material so you can move on to different material.