Hello there, This is how I would teach the Activity Set; The Sun and Shadows.
I would start by showing photos of daytime to the children and asking them to descibe the photo, focusing in on words such as sun, daytime, daylight, bright etc. I would then ask what activities we do during these hours e.g. have our breakfast, go to school, play, eat lunch etc. I would ask what is the opposite, i.e. nighttime and the moon, look for words such as bedtime, dark, stars etc. Not only would I compare daytime and nightime light, darkness, different activities etc I would also compare heat and temperature etc. Explain how we get heat and light from the sun etc.
Pull the blinds down in the classroom, put on a bright light, as the children to face the light, is it bright? Ask the children to turn 180 degrees so they are now facing away from the light, is it still bright or has it gotten darker??
Put the children into pairs, head outside to the yard and ask the children to trace each others shadows using chalk at a given time during the day. Come back again a while later and see has the length of the shadow changed or is it gone completely etc? ehy is that? The earth has moved etc.
For a follow up activity about the sun and shadows, get seeds and two pot plants. Divide the seeds and plant them in two different pot plants. Place one pot plant on the window sill in sunlight and give it water. Place the other pot plant in the press without light and water. Compare the pot plants after two weeks or so; do they look alike now etc? No, the seeds need water and sunlight to grow, hence, the pot plant in the press did not flourish.