New
New
Year 6

Use knowledge of additive structure to solve problems

I can use knowledge of additive structure to solve problems.

New
New
Year 6

Use knowledge of additive structure to solve problems

I can use knowledge of additive structure to solve problems.

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Lesson details

Key learning points

  1. Additive structures can be applied in a range of contexts.
  2. Additive structure can be applied in the contexts of measure.
  3. Additive structure can be applied in the context of statistics.

Keywords

  • Represent - To represent something means to show something in a different way.

Common misconception

Pupils identify the correct bar model as the model with the correct numbers with equal parts.

Whilst this may represent the problem with regards to the numbers involved, encourage pupils to consider the size of each part in proportion to the whole as this may help when estimating answers to missing parts or wholes.

Encourage pupils to draw the bar models for themselves and reason about which bar models best represent each problem. There may be a number of bar models that could fit the problem but others may better represent the problem if parts take into consideration the proportionate size.
Teacher tip

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).

Lesson video

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6 Questions

Q1.
What is the missing addend in this bar model?
An image in a quiz
Correct Answer: 101
Q2.
Select the worded problem that requires addition to solve it.
Jun has 135 points. Aisha has 147 points. How many more points does Aisha have?
Correct answer: Jun has 135 points. Aisha has 12 points more. How many points does Aisha have?
Jun has 135 points and Aisha has 147 points. Who has most points?
Correct answer: Jun has 135 points. Aisha has 147 points. How many is this altogether?
Q3.
Alex was training for a swimming race. On Monday he swam 1,200 m. On Wednesday he swam 1,450 m and on Friday he swam 1,200 m. How far did he swim? m
Correct Answer: 3,850
Q4.
Calculate using an efficient strategy. Aisha buys a cup of coffee for £4.09 and a slice of cake for £2.89 How much does she spend? £
Correct Answer: 6.98, £6.98
Q5.
Complete the column addition to find the sum.
An image in a quiz
Correct Answer: 90.73
Q6.
Complete the column subtraction to find the difference.
An image in a quiz
Correct Answer: 18.61

6 Questions

Q1.
Which bar model represents the story? Laura was counting bees in the school garden. On Tuesday, she saw 12 bees. On Wednesday, she saw 39 and on Thursday she saw 18 How many bees altogether?
A
Correct answer: B
C
Q2.
In a relay race, Laura, Jacob, Lucas and Andeep ran a total of 1,400 m. Which bar model could show how far each child ran?
A
Correct answer: B
Correct answer: C
Q3.
Laura is dividing 1.8 litres of water equally between three jugs. Which bar model could represent the story?
A
B
Correct answer: C
Q4.
The bar model shows the number of books borrowed from the library on which days?
An image in a quiz
Correct answer: Monday
Correct answer: Tuesday
Wednesday
Thursday
Correct answer: Friday
Q5.
Look at the structure of this bar model. Which story could it represent?
An image in a quiz
Laura has 3 bags of flour that all have the same mass.
Correct answer: 3 children compare the height of sunflowers. 2 are the same height, 1 is taller.
Laura has 3 strips of ribbon that are different lengths.
Q6.
Look at the bar model. How many books were borrowed altogether? books
An image in a quiz
Correct Answer: 951

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