New
New
Year 5
Solve problems involving converting units in different contexts
You can solve problems involving converting units in different contexts
New
New
Year 5
Solve problems involving converting units in different contexts
You can solve problems involving converting units in different contexts
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Lesson details
Key learning points
- Use known units of measure and their equivalents to solve problems
Keywords
Convert - Change a value or expression from one form to another, such as grams into kilograms.
Common misconception
The most common mistake pupils will make when faced with these sorts of questions is not taking into account the unit conversion that needs to take place if the units of measure are mixed.
You may wish to consider drawing extra attention to the fact that the units of measure are different when presenting the Practice tasks, for example highlighting them in different colours if appropriate.
The lesson incorporates a variety of calculation types: those which should be known facts such as times tables, those which are relatively easy to calculate and can be worked out mentally such as multiplying by 10, and those which require a written strategy. You may wish to use further modelling.
Teacher tip
Licence
This content is © Oak National Academy Limited (2025), licensed on
Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions (Collection 2).Lesson video
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Starter quiz
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6 Questions
Q1.
How many months are there in one year?
Q2.
How many minutes are there in one hour?
Q3.
28 × 10 =
Q4.
Match the imperial measurement to the metric measurement that is most similar and used to measure a similar thing.
litres
grams
kilometres
Q5.
Which of these statements is true?
5 km = 5 miles
5 km is approximately 8 miles
Q6.
4.5 × 2 =
Exit quiz
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6 Questions
Q1.
Laura and her family are going on holiday. They are spending 2 weeks in Spain and 2 days in Portugal. How long are they on holiday for altogether, in days? days
Q2.
It’s the summer holidays for the children of Oak Academy. They have four weeks and three days off. How long do they have off altogether, in days? days.
Q3.
Laura and Andeep are competing against each other to beat a tricky level on Space Blasters. Laura clears it in exactly two hours and Andeep takes 115 minutes. Which of these statements is correct?
Andeep is quicker by 5 minutes.
Laura is quicker by 113 minutes.
Q4.
Andeep lives 10 miles away from a theme park. Laura lives 20 km away from the theme park. How much further away does Laura live? km (5 miles is approximately 8 km)
Q5.
Laura’s mum has a 2 gallon petrol can which is full. She accidentally knocks it over. 7 litres spill out of it. How much petrol is left in the can? l (1 gallon is approximately 4.5 l)
Q6.
Laura’s mum has a 2 gallon petrol can. It is not full. It currently holds 5 litres. How much more petrol does it need to fill it? It needs l more to fill it. (1 gallon is approximately 4 l)