Term-to-term rules
Objective. Describe and continue a sequence using its term-to-term rule.
- 1. Learn
- 2. Worked example
- 3. Practice
- 4. Feedback
- 5. Continue
Learn: the key idea
A term-to-term rule says how to get from one term to the next. It needs a starting value to define the sequence completely.
Worked example
Continue 5, 8, 11, 14, …
- 1Differences: 3 each time.
- 214 + 3 = 17, then 20.
Answer: 17, 20
Concept mastery
Based on your past attempts at this lesson — the question types to practise again come first.
Complete a practice set to see your concept breakdown here.
Practice
Practice happens on its own screen, one question at a time. Answers stay hidden until you submit yours, and you can stop and pick up at the same question later.
Start practisingCommon mistake. Giving a rule without stating the first term.
Your progress
Tick each step as you finish it. Your exact reading position is saved automatically, so Continue drops you back on the same line.
0 of 5 steps complete
Your place saves automatically as you read.