Using Scale Factors — Interactive Lesson (Year 6)

Is Square B twice as big as Square A? This 14-slide interactive lesson introduces scale factors through simple enlargements.

Mastering Using Scale Factors in Year 6 Maths

Pupils learn to enlarge shapes and describe enlargement in simple terms, understanding that a shape is an enlargement of another if all the matching sides are in the same ratio. They start with familiar language such as “twice as big”, then move to the language of scale factors. A square with 2 cm sides enlarged to 4 cm sides has a scale factor of 2, and all sides are multiplied by the same scale factor.

What’s Included

• 14-slide interactive lesson on using scale factors
• Learning objectives on enlarging shapes and identifying scale factors
• An interactive scale factor explorer
• Questions on enlarging a quadrilateral and the area after enlargement
• A short writing task to describe an enlargement

Key Benefits for Students

• Builds understanding of enlargement in simple terms
• Links scale factor to ratio and multiplication
• Moves from everyday language to mathematical language
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A concise lesson that fits a single session
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• Links naturally to ratio and proportion

Love this? You’ll love…

• Using Ratio Language — Interactive Lesson (Year 6)
• Area of Any Triangle — Interactive Lesson (Ages 10–11)
• Coordinates in the Four Quadrants — Interactive Lesson (Ages 10–11)

A dependable addition to a Year 6 geometry and ratio topic, giving pupils a visual way into enlargement. A secure grasp of scale factors prepares them for similarity and scale drawings at secondary school.

Make enlargement simple — Add to Basket.

FAQ

What year group is this for? Year 6 (ages 10–11), KS2.

Does it use the words scale factor? Yes — pupils move from “twice as big” to scale factor language.

Is it self-marking? Yes, with instant feedback on the questions.