Convert from larger to smaller units of measure
Lesson details
Learning outcome
I can apply known unit conversions to convert from larger to smaller units of measure.
Key learning points
- 1 m = 1000 mm
- 1 kg = 1,000 g
- 1 l = 1,000 ml
- 1 km = 1,000 m
Keywords
Equivalent - When two or more things have the same value.
Convert - To change a value or expression from one form to another.
Common misconception
Some pupils may see the prefix 'milli' and think it is related to 'million'.
Part of the lesson focuses on the etymology of the words and the fact that the prefix 'milli' means 'thousandth'; a millimetre is a thousandth of a litre and a millilitre is one thousandth of a litre. Consider displaying this in your environment.
Teacher tip
You may have had previous experience of converting between units multiplicatively - multiplying or dividing by 10, 100 or 1000. Here, a different approach is used, based around partitioning the number. Knowing the key unit conversions, and the multiples thereof, forms the basis.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.How many metres are there in one kilometre?
Q2.How many grams are there in one kilogram?
Q3.How many millilitres are there in one litre?
Q4.Which of these numbers will you say if you are counting in steps of one thousand from zero?
Q5.If each of the circles is worth 1,000, what is the total value?
Q6.What is the multiple of 1,000 after 9,000?
Assessment exit quiz
6 Questions
Q1.Convert these kilograms to grams. Altogether, there are ___.
Q2.Convert these kilometres to metres.
Q3.How many millimetres are there in 7 metres? mm
Q4.What are the missing numbers on this number line?
Q5.Add 1,000 g to the amount shown. g
Q6.Izzy weighs her pet cat. The cat has a mass of 2 kg. She weighs her pet dog. The dog has a mass of 6 kg. What is their combined mass in grams? g
To help you plan your 5 maths lesson on: Convert from larger to smaller units of measure, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 5 maths lesson on: Convert from larger to smaller units of measure, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Converting units unit, dive into the full primary maths curriculum, or learn more about lesson planning.