New
New
Year 6

Identify structures within stories and use knowledge of structures to create stories

I can identify structures within stories and use knowledge of structures to create stories.

New
New
Year 6

Identify structures within stories and use knowledge of structures to create stories

I can identify structures within stories and use knowledge of structures to create stories.

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Lesson details

Key learning points

  1. Bar models can represent the maths in a story or problem.
  2. A story can represent the maths presented in a representation.
  3. The structure of the maths can be represented by a model or a story.

Keywords

  • Represent - To represent something means to show an idea or concept. One concept can be represented in multiple ways.

  • Additive - Additive means related to addition. An additive structure is one that is composed by adding parts.

  • Multiplicative - Multiplicative means related to multiplication. A multiplicative structure is one that is composed by multiplication.

Common misconception

Pupils struggle to identify appropriate sized bars that fit the problem as well as equate to the size of the whole.

Find parts that fit the structure of the problem first, then ask what the whole would be. Change the size of the whole and ask pupils which rod(s) would need to change. Encourage children to reason their decisions by comparing the size of the rods.

Ensure pupils regularly articulate what each rod represents in relation to the problem. To deepen thinking, can pupils show you the same structure of the problem using a different set of coloured rods?
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 operation is needed to solve this problem? Lucas has 210 marbles. He packs them equally into ten bags. How many marbles are in each bag?
Addition
Subtraction
Multiplication
Correct answer: Division
Q2.
Which numbers in the bar model are the addends? (MC)
An image in a quiz
850
Correct answer: 640
Correct answer: 210
Q3.
What is the missing addend in this bar model?
An image in a quiz
Correct Answer: 185
Q4.
Which two addends would make the total of 460?
An image in a quiz
125
225
Correct answer: 265
Correct answer: 195
Q5.
Alex was training for a swimming race. On Monday he swam 1,400 m. On Wednesday he swam 1,500 m and on Friday he swam 1,200 m. How far did he swim? m
Correct Answer: 4,100
Q6.
Complete the column addition to find the sum.
An image in a quiz
Correct Answer: 15.39

6 Questions

Q1.
Alex has three different fruits for a snack. He has the same number of cherries and grapes but fewer strawberries. Which model could represent this?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q2.
Which story could these number rods represent? A snack box contains:
An image in a quiz
The same number of cherries, grapes and strawberries.
More grapes than strawberries and cherries.
Correct answer: More grapes than cherries. The same number of cherries and strawberries.
Q3.
Match the model to the structure that it represents.
An image in a quiz
Correct Answer:A,Additive structure

Additive structure

Correct Answer:B,Multiplicative structure

Multiplicative structure

Correct Answer:C,A combination of additive and multiplicative structures

A combination of additive and multiplicative structures

Q4.
Match the structure to the correct description for the size of the parts.
Correct Answer:Additive structure,the size of the parts is unequal

the size of the parts is unequal

Correct Answer:Multiplicative structure,the size of the parts are equal

the size of the parts are equal

Correct Answer:Additive and multiplicative structure,some parts are equal and some parts are unequal

some parts are equal and some parts are unequal

Q5.
Use this model to solve the problem. Each angle in a rectangle measures 90° What is the total of all angles in the rectangle? °
An image in a quiz
Correct Answer: 360, 360°
Q6.
Alex was training for a swimming race. On Monday he swam 1,250 m, on Wednesday he swam 1,500 m and on Friday he swam 1,750 m. How far did he swim in total in the week? m
An image in a quiz
Correct Answer: 4,500, 4500, 4500 m