New
New
Year 2

Investigate how polygons can be joined and folded to form 3D shapes

I can investigate how polygons can be joined and folded to form 3D shapes.

New
New
Year 2

Investigate how polygons can be joined and folded to form 3D shapes

I can investigate how polygons can be joined and folded to form 3D shapes.

Lesson details

Key learning points

  1. 3D shapes can have flat faces. Each face is a 2D shape.
  2. 2D shapes can be folded and joined together to build 3D shapes.

Common misconception

Children may apply the names of 2D shapes to 3D shapes (such as square and cube).

Have examples of the confused 2D and 3D shapes (such as square and cube) for the children to handle and explore. Discuss what is the same and what is different about them.

Keywords

  • 3D / three-dimensional - A shape with three measurable dimensions, e.g. width, height and depth.

  • 2D / two-dimensional - A shape with only two measurable dimensions, e.g. width and length, but no thickness.

  • Face - The flat 2D surfaces of a 3D shape.

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).

Loading...

6 Questions

Q1.
Tick all the polygons.
An image in a quiz
A
Correct answer: B
C
Correct answer: D
Q2.
Match the image of the polygon to its name.
An image in a quiz
Correct Answer:A,triangle

triangle

Correct Answer:B,octagon

octagon

Correct Answer:C,quadrilateral

quadrilateral

Correct Answer:D,rectangle

rectangle

Q3.
Order the shapes from largest to smallest.
An image in a quiz
1 - C
2 - A
3 - B
Q4.
True or false. The vertices of this polygon are all the same.
An image in a quiz
True
Correct answer: False
Q5.
Compare these shapes. Which statements are true?
An image in a quiz
They are both quadrilaterals.
Correct answer: They are both polygons.
Correct answer: Shape B is taller than shape A.
They both have a wide vertex at top.
Q6.
How would you describe the vertex that the arrow is pointing to?
An image in a quiz
The vertex looks wide.
Correct answer: The vertex looks sharp and pointy.
The vertex looks like a square corner.

6 Questions

Q1.
Which 3D shape could Jun have used to create this painting?
An image in a quiz
An image in a quiz
Correct Answer: 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
Q2.
Which 3D shape could Jun have used to create this painting?
An image in a quiz
Correct Answer: An image in a quiz
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 painting shows all the faces of this 3D shape?
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 painting shows all the faces of this 3D shape?
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
Q5.
Which 3D shapes could Jun build with his construction materials?
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
Correct Answer: An image in a quiz
An image in a quiz
Q6.
Match the 2D shape to the 3D shape that will be made once folded.
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz