Creating this mini speaker will help to develop your child's knowledge and understanding of the world around them, and how things work - in this case, how the speaker makes noises sound louder. The activity will also help to improve their hand-eye coordination and fine motor skills as they cut out the corrugated cardboard, stick it to the cup and carefully push the sticks through the cup to create the speaker. It's a bit fiddly in places, so you will need to be on hand to help your child.
How to extend the magic
Have some fun together making your own loud hailers from cardboard tubes (eg the type inside a kitchen roll or roll of foil). Your child will love shouting, making silly noises or singing into the loud hailer. You could then see if your child can think of five sounds that are very loud (eg lorry driving along a road) and five sounds that are very quiet (eg bird flapping its wings).