MA06-01 Maths Watch
Sets: definitions and notation (union, intersection, element of)
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In this lesson
In this video you'll learn about sets: definitions and notation (union, intersection, element of) for GCSE Maths, with worked examples and the mistakes examiners report. By the end you'll be able to define a set in listed or algebraic (set-builder) form and use the notation ∪ (union), ∩ (intersection) and ∈ (is an element of) to describe how two sets relate.
What it covers
- 0:57 What a set is, and the element symbol
- 3:10 Cup and cap, worked example 1
- 5:41 Set-builder form, worked example 2
- 8:10 Nothing in common
- 9:25 Exam technique
- 10:42 Your turn, with numbers this time
- 12:22 What's next
Key words
For: Cambridge IGCSE 0580, Edexcel IGCSE 4MA1, OCR GCSE J560
On the specification
| Board | Spec | Statement |
|---|---|---|
| Cambridge IGCSE 0580 | C1.2 | Understand and use set language, notation and Venn diagrams to describe sets. |
| Cambridge IGCSE 0580 | E1.2 | Understand and use set language, notation and Venn diagrams to describe sets and represent relationships between sets. |
| Edexcel IGCSE 4MA1 | F1.5A | Understand the definition of a set |
| Edexcel IGCSE 4MA1 | F1.5B | Use the set notation ∪, ∩ and ∈ |
| OCR GCSE J560 | 11.02c | Use a two-circle Venn diagram to enumerate sets, and use this to calculate related probabilities. Use simple set notation to describe simple sets of numbers or objects. |
For teachers
This GCSE Maths lesson teaches sets: definitions and notation (union, intersection, element of). By the end, students should be able to define a set in listed or algebraic (set-builder) form and use the notation ∪ (union), ∩ (intersection) and ∈ (is an element of) to describe how two sets relate. It works through three worked examples and the mistakes examiners report.