嘟嘟妈 is correct. I am an alumna of PEA and both my children also went there, although they are slightly older than her child. And of course I am a lot older!
I agree with 嘟嘟妈 to read the course guide of your child's school well.
Furthermore, it is important for you to talk to the advisor, who should be assigned to your child. If there's no advisor, then I suggest to you talk to the Dean of Students of the school to find out more about your child's course schedule for the next 4 years. This is to make sure that he takes the courses that are in line with the requirements of the schools and to maximize on the honors/AP courses that he will need to apply to college.