Why is this chapter called the Lord's Prayer? why does it end with him playing ~the book a child called it

Chapter Lord's prayer is known as this because it tells the way how to pray to the Lord.

Explanation:

A child called it is a book which has been written by Dave Pelzer is an autobiography of a small boy who is in very bad conditions. He is beaten and tortured by his mother.

One of the chapters in the book is known as the Lord's prayer because it teaches the Christians the way they should pray to the Lord and what they have to say while praying.