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Oak National Academy
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Year 4

Use efficient strategies and common measure conversions to solve problems in a range of contexts

I can use efficient strategies and common measure conversions to solve problems in a range of contexts.

Download all resources
Share activities with pupils
New
New
Year 4

Use efficient strategies and common measure conversions to solve problems in a range of contexts

I can use efficient strategies and common measure conversions to solve problems in a range of contexts.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. Use known facts to solve problems involving measures.
  2. Use informal methods such as partitioning and bridging to solve problems involving measures.
  3. Convert between units of measure to simplify problems.

Common misconception

Pupils may need support to identify the operation(s) involved in solving a problem and when a problem is presented with mixed units and it is necessary to convert one of them.

Read the problems aloud. Ensure that children identify the operation(s) involved and see this as a clear step in solving the problem. Emphasise the units of measure so that attention is drawn to them and they identify whether conversion is needed.

Keywords

  • Convert - To change a value from one form to another, such as converting 1 m into 1,000 mm

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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Starter quiz

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6 Questions

Q1.
Tick all of the statements that are true.
10 g = 1 kg
Correct answer: 1 kg = 1,000 g
1 l = 100 ml
1,000 m = 1 mm
Correct answer: 1,000 m = 1 km
Q2.
Jun’s dog has a mass of 3 kg. The mass increases over time by 1 kg. Which of these statements is true?
Correct answer: The mass of the dog has gone up.
The mass of the dog has gone down.
The mass of the dog has stayed the same.
Q3.
800 m + ___ m = 1,300 m
Correct Answer: 500, 500 m , 500 metres
Q4.
900 m + 600 m = m
Correct Answer: 1,500, 1500
Q5.
2,000 − 30 =
Correct Answer: 1,970, 1970
Q6.
1 kg − 50 g = g
Correct Answer: 950, 950g, 950 g

Exit quiz

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6 Questions

Q1.
Jun and Snowy walked 3 km on Tuesday. This was 500 m further than they walked on Monday. How far did they walk on Monday?
Correct Answer: 2,500 m, 2,500m, 2500 m, 2.5 km
Q2.
Snowy eats 2,000 g of food over three weeks. She eats 750 g during Week 1 and 750 g during Week 2. How much does she eat during Week 3?
Correct Answer: 500 g, 500g, 0.5 kg
Q3.
Snowy’s height is 200 mm. Jun’s height is 1 m. How much taller is Jun than Snowy?
Correct Answer: 800 mm, 800 , 0.8 m , 80 cm, 80cm
Q4.
Snowy is supposed to eat 1 kg of food in one week. So far she has eaten 500 g. How much more does she need to eat?
Correct Answer: 500 g, 500g, 500, 0.5 kg
Q5.
Snowy drinks 2,200 ml of water in Week 1 and 2,600 ml of water in Week 2. How much has she drunk altogether? ml.
Correct Answer: 4,800, 4,800 ml, 4800, 4800 ml
Q6.
Jun fills a dog bath with with 5 l of water. Snowy is not happy. She splashes and wriggles, spilling about 50 ml of water out. How much water is left in the bath ml.
Correct Answer: 4,950 , 4,950 ml, 4950 ml, 4950