In this Geography video, teachers are shown how to calculate the length of routes on maps using scale bars. The lesson demonstrates how to measure both straight and curved lines, using either a ruler or a piece of string, and then convert the measurement using the map’s scale.

The video explains how scale bars show the ratio between map distance and real-world distance, typically in kilometres. Straight-line distances can be measured and multiplied using the map’s ratio, while curved routes such as rivers or winding roads require a flexible tool to follow the shape before measuring. These techniques can be applied to a range of maps including Ordnance Survey (OS) maps. Teachers are supported in helping the children interpret geographical data and apply mathematical reasoning when analysing maps.

This video is part of Kapow Primary’s Geography map skills videos and equips teachers with the confidence and clarity to model map measurement skills effectively.

See more of our Key stage 2 Geography scheme of work.

• Geography, Year 4, Where does our food come from? Lesson 4: Where does our food come from?
• Geography, Year 5, Why do oceans matter? Lesson 2: What is the Great Barrier Reef?
• Geography, Y3/4 (A), Where does our food come from? Y3/4 (A): Lesson 4: Where does our food come from?
• Geography, Y5/6 (B), Why do oceans matter? Y5/6 (B): Lesson 2: What is the Great Barrier Reef?