New
New
Year 2

Skip count using the group size to find the number of groups

I can skip count using the group size to find the number of groups.

New
New
Year 2

Skip count using the group size to find the number of groups

I can skip count using the group size to find the number of groups.

Lesson details

Key learning points

  1. Division means splitting into equal parts or groups.
  2. Skip counting in the group size can be used to calculate the number of equal groups in a division story.
  3. We say 50 divided into groups of 10 is equal to 5
  4. We can write 50 ÷ 10 = 5

Common misconception

Pupils may think that the 'divisor' (the number we are dividing by) always represents the number of groups.

Avoid generalising the divisor as the 'number of group' for every division problem, explaining that this only works in contexts in which grouping takes place. For sharing problems later in the unit, the divisor is the 'size of each group'.

Keywords

  • Division - Division means splitting into equal parts or groups.

  • Multiple - A multiple is the result of multiplying a number by another whole number.

Pupils could use number rods with number lines or rulers to support calculating throughout the session. For Task B, pupils could be challenged to find the number of animals with 15 legs as only seastars could have a total of 15 legs.
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).

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6 Questions

Q1.
1. Use the number rods to help you find the missing number in this equation. 6 ÷ 2 =
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Correct Answer: 3
Q2.
Use the number rods to help you find the missing number in this equation. 10 ÷ 5 =
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Correct Answer: 2
Q3.
How many 2 cm long number rods are equal to 8 cm?
Correct Answer: 4, four
Q4.
How many 5 cm long number rods are equal to 15 cm?
Correct Answer: three, 3
Q5.
Aisha and Jun have a piece of card 20 cm long. How many 5 cm long pieces can they cut it into?
Correct Answer: 4, four
Q6.
Aisha and Jun have a piece of card 30 cm long. How many 10 cm long pieces can they cut it into?
Correct Answer: 3, three

6 Questions

Q1.
Use the number rods to help you complete the equation. 8 ÷ 2 =
An image in a quiz
Correct Answer: 4
Q2.
Use the number rods to help you complete the equation. 20 ÷ 5 =
An image in a quiz
Correct Answer: 4
Q3.
Use the number line to to help you complete the equation. 30 ÷ 5 =
An image in a quiz
Correct Answer: 6
Q4.
Use the number line to help you complete the equation. 14 ÷ 2 = {{ }
An image in a quiz
Correct Answer: 7
Q5.
Jun saw some seastars with 5 legs. He counted 35 legs altogether. How many seastars did he see?
An image in a quiz
Correct Answer: 7, seven
Q6.
Jun saw some crabs with 10 legs. He counted 80 legs altogether. How many crabs did he see?
An image in a quiz
Correct Answer: 8, eight