Converting Units of Capacity — Interactive Lesson (Year 5)

How many litres are in six 250 ml bottles? This 12-slide interactive lesson teaches converting units of capacity between millilitres and litres.

Mastering Converting Units of Capacity in Year 5 Maths

Pupils learn to solve problems involving the calculation and conversion of units of measurement, and to use, read, write and convert between metric units of capacity. They learn the key fact that 1 litre equals 1,000 millilitres, then apply it to problems such as how much water is needed to fill a jug to 1 litre, how much juice is left after pouring a quarter from a 1-litre bottle, and converting an oil drum’s capacity of 450 litres into millilitres.

What’s Included

• 12-slide interactive lesson on converting units of capacity
• Learning objectives on calculating and converting capacity
• The key conversion: 1 litre = 1,000 millilitres
• Real-life problems with jugs, bottles and drums
• Fill-in-the-blank questions with instant feedback

Key Benefits for Students

• Builds fluency converting between millilitres and litres
• Real-life containers make capacity concrete
• Links fractions of an amount to capacity problems
• 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
• A dependable foundation before converting other metric units

Love this? You’ll love…

• Multiples of a Number — Interactive Lesson (Year 5)
• Divisibility Rules — Interactive Lesson (Ages 8–10)
• Ordering and Comparing Decimals — Interactive Lesson (Ages 9–11)

A dependable addition to a Year 5 measurement topic, giving pupils a reliable method for converting capacity using the key 1,000 ml fact. This conversion skill transfers directly to converting mass and length in metric units.

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FAQs

What year group is this for?
Year 5 (ages 9–10), KS2.

Does it use real-life examples?
Yes — jugs, bottles and an oil drum, among others.

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