Maths · KS3 Y8 · Ratio & Proportion
Map scales
m94Free4:02Heddy Score 2 of 7, below the standardPlays from youtube-nocookie.com. No YouTube cookies until you press play.
What you need to know
- A map scale can be written as a statement, a ratio or a bar.
- A ratio such as 1:25,000 means 1 cm on the map is 25,000 cm on the ground.
- Multiply a map length by the scale, then convert units, to find the real distance.
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