Unit 2: Basic Geometric Shapes 3D
Lesson 2: Basic Geometric 3D Shapes
Properties of 3D Shapes
3D shapes have faces, edges and vertices.
Faces – a face, or sometimes referred to as a side, is a flat or curved surface. For example, a cuboid has six faces, a squared-based pyramid has five and a sphere has one.
Edges – An edge is where two faces meet. For example, a cuboid has 12 edges, a square-based pyramid has eight edges and a sphere has none.
Vertices – Vertices are the corners where edges meet. A cuboid has four vertices, a square-based pyramid has five vertices and a sphere has none.
Types of 3D shapes that children will learn and recognise are:
2D and 3D Unit Summary
Self Study Links:
- Study through the PPT entitled “3D Shapes Mental Math” provided
- 3d_shapes Mental Math
- Check your Neolms for Unit Test uploaded (Quizzes covered 2D and 3D Geometric Shapes)