Patterns in shapes

Look at these two shapes.

The shape on the left is a scribble -- there is no

regularity

to it.

But the shape on the right definitely has some structure. Here are some of its properties:

These properties are like rules that tell you how the shape is made. So this shape has a definite pattern.

An exploration of shapes and their properties should therefore be included in patterning activities.

Many of these shapes (like the rectangle above) can be found

everywhere

around us

; others may be constructed using the ideas that arise in exploring our environment.

Shapes can also be used as units in

repeating patterns

and

growing patterns

The language of shapes

Pattern blocks provide an excellent introduction to some basic geometrical concepts.