To make something larger/greater in size or quantity.

Interpret and represent addition stories

Maths

Understand subtraction as decreasing an amount

Interpret and represent subtraction stories

Furthering understanding of subtraction as decreasing an amount

Create addition and subtraction stories

Find the missing part of an addition story

Find the missing part in addition and subtraction stories

Find the missing part of a subtraction story

Know that addition and subtraction are inverse operations

Represent the inverse relationship between addition and subtraction

In this unit pupils will find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations. In the future unit pupils will explain that addition is commutative. They will find pairs of numbers to 10 and add or subtract 1 from any number.

In prior learning, pupils will have learnt to count confidently and have developed a deep understanding of the numbers to 10, the relationships between them and the patterns within those numbers. In this unit pupils will find missing addends. They will partition a whole into two parts and represent it with subtraction equations learning that addition and subtraction are inverse operations.

In this unit pupils will find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations.

Additive structures: addition and subtraction

Look at the picture of the ‘First, then, now’ story. Which is the amount that was increased?

True or false. This picture matches the story below. 
First, there were 6 children sitting at the table. 
Then, 4 more children sat at the table. 
Now, there are 10 children at the table.

Which bar model represents this story? 
First, I saved 3 pennies. 
Then, I saved 5 more. 
Now, I have 8 pennies.

How many must have been added in the story below? 
First, there were 6 counters on the tens frame. 
Then, {{ }} counters were added. 
Now, there are 6 counters on the tens frame. 

True or false. This number line represents the story below.
First, my sunflower was 5 cm tall.  
Then, it grew 2 cm more. 
Now, it is 7 cm tall.

Alex writes an equation to match this story.  
4 + 2 = 6 
What does the 2 represent?

There were 5 apples. Then, 2 more apples were added. Now, there are 7 apples.

There were 2 apples. Then, 5 more apples were added. Now, there are 7 apples.

There were 6 apples. Then, 2 more apples were added. Now, there are 6 apples.

True or false? The image shown represents this story.
First, there were 4 beads on my bracelet. 
Then, I added another 3 beads. 
Now, there are 7 beads on my bracelet.

Which equation matches the story? 
First, there were 5 ducks in a pond. 
Then, 3 more ducks jumped in. 
Now, there are 8 ducks in the pond. 

Interpret and represent addition stories

Lesson outcome