Montessori felt that it is very important for children to be allowed to express themselves freely. She was aware, however, that they are very often frustrated by the fine motor skills they need for such things as cutting and gluing. She therefore developed many indirect activities that help children develop the necessary abilities. The Montessori environment is full of opportunities to experiment with different and exciting materials. Whether involved in painting, singing, playing instruments or dancing, children are allowed to be individuals, free to express their feelings and emotions and free to enjoy the rich worlds of movement, sound, colour and sensation.