I have to post on this. We are experiencing a very difficult period in our HS path at this time. Many, interruptions and the age related resistance to staying on task.
Having said that, I took my child out because she has a DX of ADHD. I am not into titles or excuses, but I have a student for whom distractions of any kind, simply stop the learning process.
In 4 1/2 years in an excellent charter school, she progressed in math and other subjects, only to the degree that she was taught at home doing homework.
I resisted the removal from this school for that long due to it's reputation. I began to HS and in a very short time, she progressed in every subject, to at least, grade level and in math and science from multiplication, to mastering pre algebra within three to four months. She has amazing retention skills and learns so quickly, that without distractions she really pops.
So, HS for her is the only way to go. I will consider returning by 9th grade or more likely, local community college classes by 10th grade.
That is why I home school.