Understand notation of Venn diagrams.
Definition of sets e.g. A = {x: x is a natural number} B = {a, b, c, …}.
Use language, notation and Venn diagrams to describe sets and represent relationships between sets.
Definition of sets e.g. A = {x: x is a natural number} B = {(x, y): y = mx + c} C = {x: a ⩽ x ⩽ b} D = {a, b, c, …}.