You should expect targets to be SMART
specific
meaningful
attainable
relevant
Time based. (there are variations on the acronym, this is my favourite!)
As a teacher, I was regularly astounded by the targets some of my kids would come in with - woolly, undefined, meaningless to the kids, and basically just pulled out of a hat.
(Example - "X will learn the first hundred high frequency words." Will he? Gosh. )
I expect to see targets that are FOR THE CHILD, not for the benefit of staff.
So, for example, you might say
"X will work towards sitting on the carpet at story time for ONE minute with adult support," NOT "X will sit on the carpet at story time and not fidget."
"X will work towards asking for adult intervention when he is finding a situation difficult. He will be supported in this with a Time Out card and adult supervision initially" NOT "X will not hit other children."
You need to work with the Nursery to decide what the areas of most importance are. More than 5 targets are largely pointless as it the work will not get done with the best will in the world.
I usually have at least one target for communication, one for personal care, one for physical needs/ physio/ OT (e.g. working on sensory diet etc) and then maybe a couple of 'academic' ones too, depending on where the child is at.
I don't know how other people have found it, but when I have visited MS schools I have felt that the IEP is largely misunderstood. Make sure YOU understand it, then you have a good starting point! HTH