Provide an answer for each of the following prompts for each major time period (infancy, early childhood, middle childhood, adolescence, early adulthood):

For each answer, you must also justify WHY you selected it

1. most important physical development achievement,

2. most important cognitive development achievement,

3. most important social development achievement,

4. most important study / research done on that age group

5. most necessary intervention for each stage in your opinion... What does that age group need the most help with?