OwlieShortest Route
How does a sat nav find the quickest way? Your child plans trips on a little map of towns and roads, adds up the kilometres, then follows the very method route planners use, one town at a time, and finally designs the cheapest road network to join every town.
- 9–16 years
- Read aloud
- No ads
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What your child learns
- Adding distances along a route and comparing routes
- Dijkstra’s method: always go on from the nearest town not done yet
- The cheapest way to join every town, without loops
- How maps and sat navs work out a route
How to play
Tap the towns one after another, from the yellow start to the green finish; tap the last town again to step back. On level 2 every town shows its distance so far: tap the nearest one not done yet. On level 3 tap roads to build them.
Levels
- Level 1Find the shortest way from one town to another.
- Level 2Owlie’s way step by step: the nearest town not done yet goes next.
- Level 3Join all the towns for the fewest kilometres, with no loops.
A tip for parents
Plan a real trip together on a map: two ways to grandma’s, which is shorter? Then check what the sat nav says.
Works on phones, tablets and computers, with nothing to install. No ads and no tracking.
Inheritance
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Human Body
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