Creating this spin dryer from a paper cup will help to develop your child's knowledge and understanding of the world around them, and how things work - in this case, how a dryer in a washing machine works to tumble dry your clothes. The activity will also help to improve their hand-eye coordination and fine motor skills as they carefully use a pen top make holes in the cup and then thread and tie the string to make a handle.
How to extend the magic
Next time, you are putting a load of laundry in the dryer, let your child see and touch the cool, wet clothes as they go in - and then let them see and touch the warm, dry clothes when you take them out. You could have a giggle together by pretending to be the clothes in a dryer. Move your arms around in circles or spin around the room! You could even show your child how to do a somersault and explain that the clothes somersault around in the dryer until all the water has been spun out of the fabric.