We live in western New York. My wife teaches in a private school and my daughter teaches in a charter school. The New York State Department of Education provides standards and direct support for high functioning special needs students and transportation to/from special classes for those with greater needs. The students in these two schools take the same standardized tests as those in the public schools. My wife teaches college level classes in Physics and Calculus to high school students with oversight from a local community college.
This is a great deal for the students because they enter the college of their choice with a better background than a typical student.
Yes, like I said, private schools are not held to the same standards. They get to use public services like support for high functioning special needs students while claiming more profit off those programs. Additionally they get to pick and choose people who attend these schools- I noticed you only specified "high functioning" for those schools. A public school doesn't get to choose between "high functioning" special needs students and "low functioning" ones.
Perhaps an increased voucher for special needs students is in order.
Society is disadvantaged when intelligent students aren't allowed to achieve their fullest potential. We need programs that allow students to independently work at their own pace. We'd have a ton more 15-16 year old's attending college.
This still doesn't allay the issue that private and charter schools have the ability to simply decline to take up students that are more difficult for them to teach.
This is a great deal for the students because they enter the college of their choice with a better background than a typical student.