New
New
Year 1

# Composition of decade numbers to 100: making groups of 10

I can recognise and count groups of ten.

New
New
Year 1

# Composition of decade numbers to 100: making groups of 10

I can recognise and count groups of ten.

Share activities with pupils
Share function coming soon...

## Lesson details

### Key learning points

1. Objects can be put into groups of 10 to make them easier to count.
2. You can recognise a group of 10 because when you separate them, there will be 10 objects.
3. If there is not 10 in each group, they are not groups of 10.
4. Groups of 10 can be called tens.

### Common misconception

Any group of objects can be counted in tens.

Identify groups that do and do not have 10 objects, drawing attention to the fact that colour, orientation and size are not relevant.

### Keywords

• Group - Objects that are gathered together into a set are said to be in a group.

• Separate - When a group of objects are taken or split apart they have been separated.

Allow lots of opportunities to construct and deconstruct groups of ten in the lesson. Find opportunities throughout the day where children can be encouraged to make groups of ten to count things quickly eg. when tidying away to check all are there.
Teacher tip

### Licence

This content is Â© Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
How many cubes can you count in the picture?
10
8
Q2.
Which picture shows the same amount as this picture?
Correct Answer: An image in a quiz
Q3.
Which picture has more objects than this picture?
Correct Answer: An image in a quiz
Q4.
Which set of cubes does not show the same amount as this set?
Correct Answer: An image in a quiz
Q5.
Which picture shows 3 groups of cakes?
Correct Answer: An image in a quiz
Q6.
Count how many groups of bricks you can see in this picture.
10
5

## Exit quiz

### 6 Questions

Q1.
How many groups of bricks can you see?
2
8
Q2.
Which of these shows 1 group of 10?
Correct Answer: An image in a quiz
Q3.
Complete the stem sentence. This is not 1 group of 10 because __________
it has 10 objects.
Correct answer: it does not have 10 objects.
Q4.
How many groups of 10 can you see?
3
2
Q5.
Match the groups of tens to the number of tens they represent.
Correct Answer:3 groups of 10,3 tens

3 tens

Correct Answer:10 group of 10,10 tens

10 tens

Correct Answer:8 groups of 10,8 tens

8 tens

Correct Answer:1 group of 10,1 ten

1 ten

Q6.
Which picture represents 4 tens?
Correct Answer: An image in a quiz