Today’s Lesson… Planes of Symmetry! LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7)

What is a plane of symmetry? LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) What is a plane? When we are working with shape, a plane is a flat surface. What is a plane of symmetry? A plane of symmetry divides a solid into two identical parts. Each part is a reflection of each other.

A Cuboid has 3 planes of symmetry LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A Cuboid A Cuboid has 3 planes of symmetry

A Cuboid has 3 planes of symmetry LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A Cuboid A Cuboid has 3 planes of symmetry

A Cuboid has 3 planes of symmetry LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A Cuboid A Cuboid has 3 planes of symmetry

Cuboid 3 Planes of symmetry LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) Cuboid 3 Planes of symmetry

LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A square based prism A square based prism has 5 Planes of symmetry

LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A square based prism A square based prism has 5 Planes of symmetry

LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A square based prism A square based prism has 5 Planes of symmetry

LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A square based prism A square based prism has 5 Planes of symmetry

LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) A square based prism A square based prism has 5 Planes of symmetry

5 Planes of symmetry Square based prism LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) 5 Planes of symmetry Square based prism

The 9 Plane Symmetries of the Cube

Your turn! Try the questions on the next slide! Extension: LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7) Your turn! Try the questions on the next slide! Extension: Invent a 3D shape that has: 2 planes of symmetry 4 planes of symmetry No planes of symmetry

State the number of planes of symmetry for each shape Questions State the number of planes of symmetry for each shape 1 2 3 4 5 6 8 9 7

Did you meet today’s Learning Objectives? LO: To understand what a plane of symmetry is, and to be able to identify the planes of symmetry in a cube (L7) CO: To be able to find planes of symmetry in other 3D shapes (L7)