| Term | Meaning | Example |
|---|---|---|
| Sequence | A list of numbers following a pattern | 2, 5, 8, 11, 14, ... |
| Term | Each number in a sequence | 1st term, 2nd term, etc. |
| Common difference (d) | The amount added each time | In 2, 5, 8... d = 3 |
| Arithmetic sequence | A sequence with a constant difference | 4, 7, 10, 13... (d = 3) |
| Pattern | The rule that generates the sequence | Start at 2, add 3 each time |
This key facts covers Key Vocabulary within Sequences for GCSE Mathematics. Revise Sequences in Algebra for GCSE Mathematics with 14 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Sequences
What is the common difference of the arithmetic sequence below? 4, 11, 18, 25, 32, ...
Zara says: 'The sequence 4, 12, 36, 108 is an arithmetic sequence.' Explain why Zara is wrong. State what type of sequence it actually is.
Quick recall flashcards
What is a term in a sequence?
Each individual number in the sequence. The 1st term is denoted T(1) or uā, the 2nd term is T(2), etc.
What is a sequence in maths?
A list of numbers that follow a rule or pattern. Each number in the list is called a term.