Alexander is a newborn who is growing and developing. In his first 4 months, he started to focus his eyes and became a new member of the family. Between 5-8 months, he began crawling and saying his first words. At 18 months, Alexander started daycare and interacting with other children. By 2 years, he was using 2-3 word sentences, pointing to body parts, repeating words, and playing with his sister. The document discusses Alexander's development in physical, social/emotional and cognitive domains at different ages.