Developing an understanding that there are different ways we measure and compare objects .An example of this is size. Size can be described by different attributes such as distance, time or quantity and can be represented through symbols. Number is an example of how we can represent size through a symbol. There are different ways we can move through space and understanding movement and location will help us to navigate our environment. Learning to navigate the environment helps us to share space with others and to organise and plan how we will live within shared space.