Rounding to Significant Figures — Interactive Lesson & Worksheet (Ages 14–16)

Still confusing significant figures with decimal places when rounding? This 21-slide interactive lesson, paired with a printable worksheet, gives pupils extensive practice rounding numbers to a given number of significant figures.

Mastering Significant Figures in GCSE Maths

Pupils practise rounding numbers to a given number of significant figures, building the fluency within the GCSE Maths curriculum’s number strand. Distinguishing significant figures from decimal places is a genuinely common source of confusion, and this lesson and worksheet combination gives pupils extensive practice telling the two apart correctly.

What’s Included

• 21-slide interactive lesson on this rounding method
• A printable 3-page worksheet for further practice
• Self-marking activities with instant feedback
• Step-by-step guidance identifying the correct figures to keep

Key Benefits for Students

• Builds genuine confidence distinguishing this method from decimal places
• Instant feedback confirms correct rounding straight away
• The printable worksheet extends practice beyond the screen
• Genuinely exam-relevant preparation for a commonly confused topic
• Reduces careless errors that come from rushing the rounding step

Why Teachers Love It

• No prep — the lesson and worksheet are both ready to use
• Works on any interactive whiteboard or shared screen
• Self-marking activities free you up to support individual pupils
• Combines digital teaching with a printable for flexible lesson planning
• A dependable resource for a topic pupils often find genuinely tricky

Love this? You’ll love…

• Finding the Midpoint of a Line Segment — Interactive Lesson & Worksheet (Ages 14–16)
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A strong addition to any GCSE number topic, whether taught as the main lesson or used for focused revision closer to an exam covering rounding and approximation more broadly. Getting this genuinely secure here also prevents a recurring source of lost marks across standard form and estimation questions throughout the GCSE course.

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FAQ

What year groups is this for? GCSE (Years 10–11, ages 14–16).

Is there a printable component? Yes, a 3-page worksheet is included.

Is it self-marking? Yes, instant feedback throughout.