On the way to the park, Paul wants to help Lisa but he is far too small to carry her heavy bag. In the park, they play a game, Lisa lets him touch and guess what she has in her bag. Paul discovers that everything we use and see, not only has a name, but is different in size, shape and texture too. Lisa s bag is big and heav y, the skipping rope is long and flexible, the branches on the trees are long and rough, they all have their own special characteristics.