How can children retell the story to each other and what materials would I need for that ​

Here are the five easy steps:

Preview the book. Talk about the title and pictures with your child.

Read the book. You can read the book, your child can read the book, or you can read it together.

Ask your child to retell what they read. ...

Reread the book.

Ask your child to retell again.

Explanation:

it would be offer because the group is offering all at once.