The Ghost Club
A club can have lots of members, or it can have none at all! A club with ZERO members is called the Empty Set. It’s like a Ghost Club where nobody has joined yet!
The Empty Box
How would you show a Ghost Club on your map? (The Empty Set)
Hint: Since nobody is in the club, you shouldn’t color in any part of the map!
The Whole School
Which parts make up the Whole School? (The Universal Set)
The whole school includes everyone in the clubs AND everyone who didn’t join a club!
Clubs with No Overlap
If Club A and Club B have NO members in common, which part must be an Empty Set?
The “Neither” Party
Select the people who are in NEITHER Club A nor Club B.
Think: Who is completely outside the club area?