Maths · KS3 Y7 · Algebra
Term-to-term sequences
Term-to-term sequencesFree13:48Heddy Score 3 of 7, below the standard
What you need to know
- A linear sequence goes up or down by the same amount each time.
- The common difference gives the number in front of n, so a sequence going up in 4s has 4n in its nth term.
- Compare the sequence with the times table of the difference to find what to add or subtract.
- A decreasing sequence has a negative coefficient of n, such as −2n + 12.
- To test whether a number is in the sequence, set the nth term equal to it; a whole-number n means yes.
In this clip
Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
See the seven stars
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
Not enough students yet
Our own students' answers. These are what move ★7 Proven.On YouTube
How the Heddy Score works148K views · 1.99K likes · 1st Class Maths 313K subscribers
As reported by YouTube on 2026-11-03. Not part of the Heddy Score.Why we picked it
Builds the nth term rule from times tables and then uses it to find the 100th term and test membership, all with clear examples.
1st Class Maths on YouTubechecked 2026-10-22
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