Maths · KS3 Y7 · Ratio & Proportion
Simple scale drawings
m93Free4:13Heddy Score 2 of 7, below the standardPlays from youtube-nocookie.com. No YouTube cookies until you press play.
What you need to know
- On a scale drawing every length is reduced by the same amount.
- Convert drawing lengths to real lengths before working out a real area.
- Area cannot be converted using the length scale alone.
- To add an object to a drawing, scale down its real measurements first.
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.2/7, Below the standard
- 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 · not judged yet. 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
How the Heddy Score worksNot enough students yet
Our own students' answers. These are what move ★7 Proven.Why we picked it
Maths lesson on map scales and scale drawings with worked exam questions; KS3 and GCSE.
Cognito on YouTubechecked 2026-10-16