How will you communicate with children at an appropriate level of complexity?
Basically its asking you how you would communicate with children of different ages
Eg you would not say to a toddler ......." Your behaviour is unacceptable" you would say "We do not do this" or something to that effect, bascically using as much (or little) langauge as that age group can understand
For a 5 year old you could say " Your behaviour is unacceptable" because he would understand what you meant
with the baby part I think you are on track