The leaves, acorns, tree bark and sticks that we collected on our hike. An orange lake. The sound of a woodpecker looking for insects or making his house. The art that we make, being amazed by the moon on a crispy morning, the art of negotiation and trading. Playing pirates in a magic ship. Being listened to and listening. These are the treasures that we collected this week.

Artists and mathematicians in action. 

"Teacher! The lake is orange!" exclaims Duckling.

Using leaves and more to make art.