Michael Robinson, a parent of children with disabilities, has compiled state data on charter schools in Massachusetts and students with disabilities.

The facts are shocking and should be an embarrassment to the charter industry.

Here are just a few of those facts, from official data:

25% of Massachusetts charter schools have zero full-time special educators, as compared to only 3% of public schools.

Public schools report one special-education teacher for every 22 students with disabilities, charters report one special-education teacher for every 36 students with disabilities.

67% of the “districts” with the lowest service to students with disabilities are charter schools.

Students with disabilities enrolled in charter schools are three times as likely to be disciplined as students in public schools (14% vs. 5%).

91.3% of the districts with the highest rates of disciplinary actions for students with disabilities are charter schools.

Students with disabilities are 2.4 times more likely to be suspended at charter schools than at public schools.

80% of the districts with the highest rates of suspension/expulsion of students with disabilities are charter schools.

If you are a parent of a child with disabilities, forget about sending him or her to a charter school. They are not wanted, they will not have a teacher who has appropriate training and certification, and they are likely to be suspended or expelled.

These schools do not provide a free and appropriate education for students with disabilities. Why do their advocates call them “public”? Why are they allowed to ignore federal law protecting these students? John King founded one of the harshest of the “no-excuses” charter schools in Massachusetts. Is he now ignoring the abuse of federal law by other charter schools in Massachusetts?