This session began life as an extension activity to The Ship of Theseus session (see The If Machine p. 86) but has now developed into a session in it’s own right. It’s a good get-up-and-do session. Equipment needed and preparation: space, a class of children Starting age: 8 years Key concepts / vocabulary: change, identity, ...

Story Many years ago, in Northern Italy, lived a king. He lived in a palace with his son, the Prince. Every week the king and his son would walk out of the castle, down the hill, through the trees to a lake. They would swim for hours and then, when they had swum enough; they would walk back to the castle with water dripping off the end of the...