Make models of three-dimensional objects and describe key features (ACMMG063)
LO: To make models of 3-D shapes and describe key features.
Know:
-
the basic features of 3-D shapes.
-
the name and features of 2-D shapes.
Understand:
-
that a 3-D object is a solid figure with 3 dimensions consisting of length, width and height.
Do:
-
I can make and classify models of 3-D objects and describe their key geometric properties.
Different Types of 3-D Shapes
3-D shapes have 3 dimensions.
Describing 3-D Shapes
One way to describe 3-D shapes is by determining their properties.
A face is the flat surface of the 3-D shape.
An edge is where 2 faces meet.
A vertex (vertice) is the corner of the 3-D shape.
Usually, 2-D shapes are described with how many sides and corners they have, 3-D shapes we describe them by their edges, vertices and faces.
Nets can be folded to form 3-D shapes. They are basically flattened versions of 3-D shapes.
Teaching Ideas
Interactives
