Month 5

Mental Development
- Begin to understand cause and effect
- Spend more time examining objects
- Start to understand simple games
Visual Development
- Be able to pay attention to a very small object
- Move their head and eyes when they notice activity
- Have both eyes working together
Growth
- Weigh about 6.9 kg if she’s a girl or about 7.5 kg if he’s a boy
- Be about 64.0 cm tall if she’s a girl or about 65.9 cm tall if he’s a boy
Motor Development
- Hold their head steady when upright
- May move short distances by rocking on their stomach, kicking their legs, and swimming with their arms
- Reach for objects
- Grab their own toes and pull them toward their mouth
Social and Emotional Development
- Like to play “peek-a-boo,” which involves repeatedly hiding and revealing a face
- Be happy to play and interact with others
- Be very affectionate with and excited at seeing their parents