Make the best playdough for your construction theme sensory activities and learning centers in your preschool or pre-k classroom or at home. Find directions to make brown, gray, and dirty playdough and many fun mix-in ideas to add textures. The dirt playdough is perfect for construction theme or building theme math mats, playdough mats or play dough centers. Boys will love these dough recipes and ideas. work on fine motor skills while playing in a construction zone.