Summary Twine wool and/or grass. Plait pipe cleaners to make a mesh to model separation of clams and sand. Look at images of twined rope, clam baskets and hats. Science content Biology: Indigenous People's sustainable use of Living Things (K, 2, 3) Chemistry: Indigenous People’s Materials/Separation methods (1, 6) Chemistry: Physical Changes, Solutions, Mixtures and Separating (2, 4, 5, 6) Activities in this lesson Twining Clam basket weaving model Procedure Do twining with dyed wool, or grass, to make a bracelet. Model how the weaving of a clam basket catches clams, but not the sand. Look at images of Indigenous twined materials, including clam baskets. Grades taught Gr 4 Gr 5 Gr 6