Year 3

Year 3

# Drawing bar models to help us with measuring word problems

## Lesson details

### Key learning points

1. In this lesson, we will review all the skills learnt about drawing bar models for addition, subtraction, multiplication and division word problems.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 4 Questions

Q1.
16L and 250ml x 4
16L and 900ml
16L and 950ml
16ml and 1000ml
Q2.
What statement matches the bar model
We know the part is 16. We don't know the whole. To calculate the whole we need to multiply the part by 2.
Correct answer: We know the whole is 16. We don't know the part. To calculate the part we need to divide the whole by 2.
We know the whole is 16. We don't know the part. To calculate the part we need to multiply the whole by the number of parts.
Q3.
Match the word problem with the correct bar model
Option 1
Option 2
Q4.
What is the calculation required to solve this word problem?
10 ÷ 5
50 ÷ 5

## Exit quiz

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### 4 Questions

Q1.
4L and 400ml multiplied by 4
16L and 1600ml
16L and 1L and 600ml
1L and 100ml
Q2.
Correct answer: We know the value of the two parts. The whole is unknown. We need to add both parts to find the value of the whole. 256 + 178
We know the value of the two parts. The whole is unknown. We need to subtract bigger part by the smaller part to get the whole. 256 - 178.
We know the value of the whole and one part. We need to subtract the whole by a part to find the value of the other part. 178 - 256
Q3.
Match the word problem to the calculation
450cm - 5cm