I would take the concept of the sun and shadows as an opportunity to go outdoors on a sunny day to explore how shadows are formed. I would bring out a football and a rugby ball as a trigger for engagement- what can we see here? What differences are there? How can we see what these are? What if it was night time- could we see the balls more or less clearly? Then address the shadows and their shapes.
The children could then explore the yard space by finding different objects and discussing and experiment with the shadows. I liked the idea of using chalk to outline shadows from the sun activities booklet. An extension on that could be to trace the children’s shadows in the morning, and compare them at lunchtime/ at the end of the day. This could offer a further challenge/higher order questions for the high achievers.