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.

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.

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.

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.

Allow opportunities to construct and deconstruct groups of 10 from objects in the environment in the lesson. Use the slides to simply aid lesson design and delivery. Find opportunities throughout the day to make groups of 10 to count things quickly e.g. when tidying away to check all are there.
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.
How many cubes can you count in the picture?
An image in a quiz
10
Correct answer: 9
8
Q2.
Which picture shows the same amount as this picture?
An image in a quiz
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Q3.
Which picture has more objects than this picture?
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
Q4.
Which set of cubes does not show the same amount as this set?
An image in a quiz
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Q5.
Which picture shows 3 groups of cakes?
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Q6.
Count how many groups of bricks you can see in this picture.
An image in a quiz
10
Correct answer: 4
5

6 Questions

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

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