Introduction to Percentages — Interactive Lesson (Year 7)

What does per cent really mean? This 31-slide interactive introduction to percentages explains parts per hundred, using hundred squares to make the idea visual.

An Introduction to Percentages for Year 7 Maths

Students learn that percent means out of 100, so 25% is 25 out of 100, 25/100, 1/4 or 0.25 as a decimal. Hundred-square diagrams help them read the shaded percentage, find the percentage not shaded and write each as a fraction in its simplest form. They then write one number as a percentage of another, including cases needing 2 decimal places or a units conversion, such as 6 cm out of 3 m.

What’s Included

• 31-slide interactive introduction to percentages
• Hundred-square diagrams showing parts per hundred
• Converting percentages to fractions and decimals
• Writing one number as a percentage of another
• Fill-in-the-blank and drag-and-drop questions plus a review quiz

Key Benefits for Students

• Builds a visual understanding of what a percentage is
• Links percentages, fractions and decimals
• Practises writing one quantity as a percentage of another
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• Hundred squares make a tricky idea concrete
• Self-marking questions support independent practice
• Includes a reasoning question to stretch students
• A natural first lesson in a percentages unit

Love this? You’ll love…

• Converting Percentages to Decimals — Interactive Lesson (Ages 11–14)
• Representing Fractions on Diagrams and Number Lines — Interactive Lesson (Ages 11–14)
• Simplifying Ratios — Interactive Lesson (Ages 11–14)

A dependable start to a percentages unit, giving Year 7 students a firm grasp of what percentages represent before they calculate with them. Confident percentage sense underpins ratio, probability and financial maths.

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FAQ

What year group is this for? Year 7 (ages 11–12), KS3.

Does it cover fractions and decimals? Yes — students link each percentage to a fraction and a decimal.

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