The document is about separating and recycling materials. On Friday, some friends from Valencia will come to tell the class a story about recycling. In the story, things got very sad when materials were mixed together because each wanted to go to its own container. The class will sit in a big circle to hear the story told by the friends. Since the containers would not fit in the school, they will have to imagine them. The class will listen carefully and learn that plastics, cans and bricks go in the yellow container, paper and cardboard in the blue, and glass in the green.