Natanael Diaz Professor Jefferis Child development 103 March 24, 2017 Chapter 6 Milestones 1. Substage 1: simple reflex learn through reflexes, is gone it's gone. For example, sucking behavior, the baby sucks the niple and anything else that comes to the baby mouth. Also, the baby may develop or change the way he or she sucks. (Page.147, age: 1 month) 2. Substage 2: first habits and primary circular reaction, at this age infants begin to coordinate what were separate actions into single, integrated activities. For example, babies from 1-4 months old will wiggle their fingers, kick their legs and suck their thumb. (Page.147, 1-4 months) 3. Substage 3: secondary circular reactions, during this age, infants repeat pleasurable actions that involve objects and begin to act upon the outside world. For example, when a baby repeatedly picks up a rattle for the pleasure of hearing the sound that it produces. (Page.147, age: 4-8 months) 4. Substage 4: coordination of secondary circular reactions, infants begin to use more calculated approaches to producing and babies show signs of an ability to use their knowledge to reach for things. For example, infants will not just shake the rattle but will reach out for new toy to hold. (Page. 148, age: 8-12 months) 5. Substage 5: Tertiary circular reactions, at this ages, infants starts to develop their skills such as exploring for object and by talking it apart now tries to put it back together. For example, when a baby get a toy with pieces and he or she tries to put all the pieces together. (Page.149, age: 12-18 months) 6. Substage 6: beginning of thought is the beginning of symbolic though or metal representation. This means that babies have developed the ability to visualize things that are not physically present. (Page. 149, 18 months- 2 year old) 7. Babbling, making speech-like but meaningless sound, start at the 2-3 months, and continues until around the age of 1. For example, a baby trying to communicate with words such as baba, blah, and la. (Page. 159, age: 2-3 months) 8. Infants typically produce their first words between the ages of 10-14 months, at around 18 months of age, children begin to talk. (Page. 158, age: 10-18 months) 9. Infants have memory from their earliest days, although the accuracy of infant memories is a matter of debate. Infants are capability to memory such things like movies and picture memory. (Page. 153, age: 6 months) 10. By the age of most children use two word phrase such as kick ball. Two year old using two word combinations tend to employ particular sequences that are similar to the ways in which all adults sentence are constructed. (Page. 161, age: 2 years old)