Bonus

Bonus

Have you finished early? Are you ready for an extra challenge?

Learn some language related to set theory.

Expand each section below, and do some online research to find answers to the questions.

Read the ‘Definition’ section of Introduction to Sets at the Maths Is Fun website.

Explain in your own words what a set is.

Can you provide some examples of a set?

What do we mean by the intersection of two sets?

Explain why the red area represents the intersection of A and B.

2 overlapping circles labelled A and B; the part where they overlap is coloured red.

What do we mean by the union of two sets?

Explain why the red area represents the union of A and B.

2 overlapping circles labelled A and B; both circles are coloured red.

What do we mean by the complement of a set.

Explain how the red area represents the complement of A.

2 overlapping circles labelled A and B; Outside the circles and circle B is coloured red; Circle A is coloured white, inluding the part where it overlaps with circle B.

What is a subset of a set?

Explain why the red area represents a subset of A.

Can you give an example of a set and its subsets?

2 overlapping circles labelled A and B with another smaller red circle inside A but not overlapping with B.