Hi Kate,
If the sun is moving too quickly
if we get a sunny day this week run outside and see how fast the Sun moves. I’ve found that you just about have time to get a full chalk drawing of a person before the Sun has moved enough that they don’t fit into their own shadow.
Depending on what is in your school grounds, children could place cones to mark the shadow of a tree – and for older children this could be linked to the directions South, East and West and how this shows us the time of day.