When does the school notify the parents when their child will take the exam? I know the dates for next year, I am looking for a time period. i.e.: one week before the exam etc?

In a New York City Public Pre-K, you will usually be notified of the exact day of the exam in a minimum of one week.  If your child is in either Kindergarten or Pre-K at a private school and will be taking the exam over the weekend, you should receive notice of the date the exams will be given from the Dept. of Education at least two weeks in advance, so that you are able to adjust your schedules.  One thing to keep in mind about testing for children in private schools is that is it administered by a test proctor, rather than a teacher.  If you are outside of NYC, check with your local department of education to find out when the testing takes place.