Children are naturally curious. Especially young children.
Show and Tell activity gives children a chance to share their knowledge with one another. Even 5-yo- like Owen and Andrea have knowledge that they can share.
Children learn more from this activity and they retain that learning better. Yes, they need the right support and encouragement to make a simple presentation in front of their friends. But after that, the feeling of accomplishing the tasks and how they can share their knowledges will make them proud. At the end, every one (including parents) learned new things from the presentation.