3D Shapes

Test yourself

3D Shapes

3D shapes are three-dimensional and have depth.

Cubes

A cube has 6 square faces.

Cuboids

A cuboid has 6 rectangle faces.

Square-based pyramid

A square-based pyramid is made up of 1 square face and 4 triangle faces.

Other pyramids

You can have pyramids with other shaped bases.
- A triangular-based pyramid has a triangle base.
- A square-based pyramid has a square base.
- A hexagonal-based pyramid has a hexagonal base.

Triangular prism

Triangular prisms have 2 triangular faces and 3 rectangular faces.

Cylinder

Cylinders have two circular faces on each end.

Cone

Cones have a circular face on its base.

Making 3D Shapes

We can make 3D shapes out of various materials like cardboard or modelling clay.

Modelling clay

Try to make it as round as possible for a sphere.
Squeeze it between your finger and thumb to turn it into a cube, pyramid, prism or cone.

Making 3D frames

We can use uncooked spaghetti and jelly-babies to make 3D shape frames.
- Cut the jelly-babies in half.
- Use the spaghetti to join the jelly-babies together.
- Use 8 half jelly-babies to form the vertices (corners) of a cube.
- Use 12 equal-length pieces of spaghetti to make the edges of a cube.

Making 3D frames cont.

Try to make a triangular-based pyramid (tetrahedron) and a triangular prism.
Count how many jelly-babies (vertices) you needed for each.
Count how many spaghetti pieces (edges) you needed.
A tetrahedron has 4 vertices and 6 edges.
A triangular prism has 6 vertices and 9 edges.

1Year 3 - Number

2Year 3 - Measurement

2.1Length

2.1.1Length

2.1.2Comparing Lengths

2.1.3Add & Subtract Lengths

2.1.4Perimeter

2.2Mass

2.2.1Mass

2.2.2Comparing Masses

2.2.3Add & Subtract Masses

2.3Volume & Capacity

2.3.1Volume & Capacity

2.3.2Comparing Volumes

2.3.3Add & Subtract Volumes

2.4Money

2.4.1Money

2.4.2Counting Money

2.4.3Adding & Subtracting Money

2.5Time

2.5.1Units of Time

2.5.2Clocks

2.5.3Telling the Time

2.5.4Time of the Day

2.5.512-Hour & 24-Hour Clocks

2.5.6Measuring Time

3Year 3 - Geometry

3.1Angles

3.1.1Angles in Degrees

3.1.2Types of Angle

3.2Properties of Shapes

3.2.12D Shapes

3.2.23D Shapes

3.3Straight Lines

3.3.1Straight Lines

3.3.2Parallel & Perpendicular Lines

4Year 3 - Statistics

4.1Statistics

4.1.1Statistics

4.1.2Pictograms & Bar Charts

5Year 4 - Number

6Year 4 - Measurement

6.1Units

6.1.1Metric Measurements

6.1.2Adding & Subtracting Money

6.2Time

6.2.1Converting Units of Time

6.2.2Changing the 12-Hour Clock to the 24-Hour Clock

6.2.3Changing the 24-hour Clock to the 12-Hour Clock

7Year 4 - Geometry

7.1Properties of Shapes

7.1.1Symmetry

7.1.2Types of Triangle

7.1.3Quadrilaterals

7.2Perimeter & Area

7.2.1Perimeter

7.2.2Area

7.3Position & Direction

7.3.1Coordinates

7.3.2Translation

8Year 4 - Statistics

8.1Statistics

8.1.1Types of Data

8.1.2Pictograms & Bar Charts

8.1.3Line Graphs

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