Days 4–6: On subsequent days, the children worked at completing their tree. Before painting it, they carefully observed the colors and formations of the bark on the tree outside. Several children noticed bumps on the bark that had an orange tinge. After the tree was painted, these children used orange construction paper to re-create these bumps and taped them to the tree. The children made leaves in a variety of ways. Some children rubbed colored crayons over actual tree leaves and cut them out. Other children drew or painted leaves. So that the children could better observe the detail in leaves, the teacher introduced self-hardening clay, which the children used to create leaf tiles. They rolled the clay into thin slabs, placed the leaves on the clay, and used cylindrical blocks to roll and press down on the leaves. When the leaves were removed from the clay, children could observe the intricate web of lines created by the veins in the leaves and their symmetrical shape. Day 6—A Visitor: Meanwhile, daily observations of the tree on the playground had continued. On the sixth day, Biyu noticed something new on the tree. “There’s something sticky there,” she said, “and I don’t like it.” It was a spider web, complete with a large orange and green spider. The children quickly became fascinated with the spider, and for several days it became the focus of their attention. The teacher let them spray water onto the web so that they could observe the details better. The mist did not disturb the spider or the web, but it made the web clearly visible.