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Mathematics

Adding and subtracting – Change

 

Guidance

 

The children will use real objects to see that the quantity of group can be changed by adding one more.

I count, you count is a game which can be used to practise counting on from different starting points. Begin by counting as you point to yourself. When you point to the children they continue the count. This is great for creating rhythmic pattern.  1, 2, 3, 4, 5 etc.

 

Show me 5 finger. Now show me 2 more. How many fingers now? How do you know there are 7?

Did you count them all 1, 2, 3, 4, 5, 6, 7?

Is there another way how to count them? We know we have 5 on this hand? Can we count on? 6, 7?

 

Use first, then and now to tell simple math stories to practice adding more in real context.

 

First there were 2 people on the bus.                                        Then 2 more people got on the bus.                              Now there are 4 people on the bus.

Number truck race provide a dice and let the children take turns to roll the dice and count on. First to reach 10 wins the game. It is easier for children to fill the rack by adding counters or pebbles etc.

10

9

8

7

6

5

4

3

2

1

 

Taking away

Use first, then and now to tell simple math stories to practice adding more in real context.

 

First there were 4 people on the bus.                                              Then 2 people got off bus.                                                Now there are 2 people on the bus.

Provide plenty of opportunities for children to practise counting back.

Last man standing

Count around the circle: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0. The person who says 0 sits down and the count continues around the circle, starting again from 10. Who will be left standing?

 

 

 

 

Blast off

 Counting back

0

1

2

 

3

4

5

6

7

8

9

10

 

Hidden items – game for addition and subtraction

Count 5 blocks or different objects. Ask the children to check how many there are and ensure everyone knows that there are 5.

Cover the blocks or what you use and as they watch place 2 more under the clothes. Ask the children to tell you how many blocks there are now, let them to use their fingers to count on.

 

Do the same but taking away. Make sure the children know how many blocks there are at the start. Take some blocks out, counting while the children watch.

Ask them how many blocks will still be hidden.

 

Key question

How many blocks did we have at the start?

How many blocks did I add/take away?

How many blocks will be under the cloth now?

 


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