New
New
Year 3

Making groups

I can identify the attributes needed to collect data about an object.

New
New
Year 3

Making groups

I can identify the attributes needed to collect data about an object.

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Lesson details

Key learning points

  1. Objects can be described using attributes.
  2. Attributes can be used to split objects into groups.
  3. Objects can be arranged in a branching tree diagram.

Keywords

  • Branching tree diagram - a diagram where data is organised into a structure that is like an upside-down tree

  • Group - a set of people or objects placed together

Common misconception

An object can be in both the 'yes' and the 'no' group, or neither group.

An object can only be in either the 'yes' or the 'no' group, not both or neither.


To help you plan your year 3 computing lesson on: Making groups, download all teaching resources for free and adapt to suit your pupils' needs...

This lesson focuses on the attributes of objects, you may want to have some physical objects in the classroom that pupils can group based on attributes.
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Licence

This content is © Oak National Academy Limited (2025), 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.
What is an object?
a thing that cannot be described
a group of similar items
a question that can be answered with yes or no
Correct answer: a thing that is uniquely identifiable and has attributes
Q2.
What is an example of an object?
a question
Correct answer: a red ball
a group of objects
a yes/no answer
Q3.
What is an attribute?
Correct answer: a word or phrase used to describe an object
a type of yes/no question
a group of objects
a way to split objects into groups
Q4.
What happens when you use a yes/no question to split a group?
the group disappears
the group becomes larger
Correct answer: the group becomes two smaller groups
the group stays the same
Q5.
What is one reason to use yes/no questions?
to describe an object
Correct answer: to split a group of objects into smaller groups
to create new objects
to give long answers
Q6.
Match the attribute to its examples.
Correct Answer:colour,red, blue, green

red, blue, green

Correct Answer:size,small, large, medium

small, large, medium

Correct Answer:material,wood, metal, plastic

wood, metal, plastic

Correct Answer:price,£5, £10, £20

£5, £10, £20

6 Questions

Q1.
What is a group?
a branching tree diagram
a single object
Correct answer: a set of objects placed together
an attribute of an object
Q2.
What is a branching tree diagram?
Correct answer: a structure that starts with one group and splits it into smaller groups
a structure where objects are placed randomly
a structure that starts with many groups and ends with one group
a diagram with no organisation
Q3.
What is the purpose of a branching tree diagram?
to describe objects
Correct answer: to split one group into smaller groups
to create new objects
to combine groups into one
Q4.
How can attributes be used?
to remove objects from a group
to organise objects into one large group
to create completely new objects
Correct answer: to describe objects and split them into groups
Q5.
Which statement about yes/no groups is correct?
Objects can belong to both the 'yes' and 'no' groups.
Objects can belong to neither the 'yes' nor the 'no' group.
Correct answer: Objects can belong to either the 'yes' or 'no' group, but not both or neither.
Objects are not split into groups by yes/no questions.
Q6.
Which way does a branching tree diagram grow?
sideways
from the bottom up
from the centre out
Correct answer: like an upside-down tree