If your child will be 8 during any portion of the school year, or has attended school before, you need to report them to your district.
This document gives a summary of what the reporting process is. Here is a sample affadavit and sample objectives taken from AskPauline.com. Remember to keep samples of work from each subject, take some photos of field trips, and keep a calendar of days 'worked'.
For days at PHA, remember that you will have a weekly summary of what the students have done, so you can always summarize, print out, or copy and paste some or all of that into a document to add to your portfolio!
We also suggest perusing the helpful information at AskPauline.com for more information on the PA laws, more sample forms, and any other questions you might have.