Incredibly, all of an infant’s senses are functioning at the time of birth. They grow more intense over the years until age 3. Infants are very interested in sensorial experiences which is why we provide rattles, bells, music and the human voice for listening; mobiles and mirrors for visual stimulation, and varied textures for touching. Children between the ages of 12 to 18 months are learning to differentiate between things such as sounds, colors, and textures. They especially enjoy the sensorial experiences of the outdoors with sand, water, dirt, leaves, sounds of birds, wind, raindrops, and the feeling of the sun or wind on their skin.