When we read something new we are often reminded of things we already know about the text. It might be something we've done before, read about, seen on TV or seen at the movies. This is called prior knowledge. We activate our prior knowledge to help us understand the text better.
Mr Mitchell told us that he went bungee jumping in Hanmer with his son, this was similar to the the book read called Jump! Mr Mitchell's experience helped us to understand "Jump!' when we read it.
