New
New
Year 1

Explore, discuss and compare 2D shapes

I can explore, discuss, compare and sort 2D shapes.

New
New
Year 1

Explore, discuss and compare 2D shapes

I can explore, discuss, compare and sort 2D shapes.

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Lesson details

Key learning points

  1. Use everyday language to compare shapes e.g. wide, narrow, tall, short.
  2. Be able to count the sides and vertices of different 2D shapes.
  3. Understand how to sort shapes into two sets based on 'is' and 'is not' criteria.
  4. Be able to guess sorting rules by looking at how shapes have been sorted into two sets.

Common misconception

Children may not recognise a 2D shape when it is presented in a different orientation.

Allow children to handle cut-outs of 2D shapes so they can rotate them and explore how the shapes look in different orientations.

Keywords

  • Sides - The straight edges around the outside of a 2D shape.

  • Vertices - The corners of a 2D or 3D shape, where two or more edges or sides meet.

  • Rectangle - A 2D shape with 4 straight sides and 4 vertices.

  • Triangle - A 2D shape with 3 straight sides and 3 vertices.

Avoid exploring further quadrilaterals for now and focus on rectangles, along with triangles and circles. Have cut-outs of 2D shapes (although not 2D) for the children to explore throughout so they can touch the sides and vertices as they count.
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).

Video

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6 Questions

Q1.
Which shape is a rectangle?
Correct answer: A
B
C
Q2.
Which shape has a side missing?
A
B
Correct answer: C
Q3.
Which shape is the same shape as this one?
An image in a quiz
Correct answer: A
B
C
Q4.
Which shape is the same shape as this one?
An image in a quiz
A
Correct answer: B
C
Q5.
Who has the widest present?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q6.
True or false? There are 4 triangles.
An image in a quiz
Correct answer: True
False

6 Questions

Q1.
How many vertices does this shape have?
An image in a quiz
3
Correct answer: 4
5
Q2.
How many sides does this shape have?
An image in a quiz
Correct answer: 3
4
5
Q3.
True or false? This shape has 4 sides.
An image in a quiz
Correct answer: True
False
Q4.
True or false? This shape has 4 vertices.
An image in a quiz
True
Correct answer: False
Q5.
Which shape is in the wrong set?
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
Q6.
Who has chosen the best sorting rule for these sets?
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