Rounding to Decimal Places — Interactive Lesson (Ages 11–14)

Do your students round up when they should round down? This 28-slide interactive lesson teaches rounding to decimal places with a clear rule and plenty of practice.

Rounding to Decimal Places in Year 7–9 Maths

Students learn the rule: look at the next digit, and if it is less than 5 leave it, but if it is 5 or more, round up. They start by rounding to a whole number and then to one decimal place, using 6.3675 as a worked example, before applying the skill to real problems such as the cost of pizzas rounded to the nearest pound and the time on a clock. A misconception task asks whether a student has really rounded or just moved the decimal point.

What’s Included

• 28-slide interactive lesson on rounding to decimal places
• Learning objectives on limits of accuracy, rounding and estimating by rounding
• Worked examples rounding to a whole number and to one decimal place
• Real-life problems and a misconception task
• Self-marking questions with instant feedback

Key Benefits for Students

• Makes the rounding rule simple and memorable
• Builds accuracy with decimal places
• Tackles a common misconception directly
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A long, structured lesson that can be split across sessions
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• A useful recap before science and money work

Love this? You’ll love…

• Rounding to 1 Significant Figure — Interactive Lesson (Ages 11–14)
• Adding and Subtracting Decimals — Interactive Lesson (Ages 11–14)
• Converting Percentages to Decimals — Interactive Lesson (Ages 11–14)

A dependable addition to a KS3 number topic, giving students a clear routine for rounding accurately. Confident rounding supports work on estimation, standard form and significant figures at GCSE.

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FAQ

What year group is this for? KS3 — Years 7–9 (ages 11–14).

Does it cover rounding to one decimal place? Yes — after rounding to a whole number, it covers one decimal place.

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