Representing overlapping groups

1. How do you visualize overlapping groups?
2. What are overlapping ideas?

How do you visualize overlapping groups?

A Venn diagram uses overlapping circles to show how different sets are related to each other.

What are overlapping ideas?

If one idea or activity overlaps another, or overlaps with another, they involve some of the same subjects, people, or periods of time. Christian Holy Week overlaps with the beginning of the Jewish holiday of Passover.