Six children decide to make a pathway that will lead to a sculpture they have just created on the playground. One boy begins to move a large patio block and then realizes that he can lift only one side. He asks, “Can anybody help me?,” and a girl quickly volunteers. The boy sets the sculpture as the starting point for laying their path, while the girl says, “We need to go from the door.” Another boy invents a different strategy to move a large block–he drags it to a new location. When the children think that their path may be complete, they decide to give it a try. The large scale of the project, the clarity of its purpose, and the ease with which the products can be laid and modified make path building an activity suitable for collaboration, planning, and reflection.