Geography · KS3 Y8 · Population & Urbanisation
The demographic transition model
The demographic transition modelFree4:15Heddy Score 3 of 7, below the standard
What you need to know
- The demographic transition model describes how birth rates and death rates change as a country develops.
- Death rates tend to fall first, while birth rates are still high, so the population grows quickly.
- Birth rates fall in later stages, and population growth slows.
- Countries can be placed on different stages of the model, and the stage helps to explain their population change.
In this clip
Runs 4:15, from 3:46 to 8:01 of the full video.
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 works462K views · 4.81K likes · CrashCourse 17.3M subscribers
As reported by YouTube on 2026-11-01. Not part of the Heddy Score.Why we picked it
The demographic transition section is a direct lesson on how births and deaths shift as a country develops.
CrashCourse on YouTubechecked 2026-10-18
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