"One out of every 100 special education students was restrained by school personnel or secluded in school from his or her peers in the 2013-14 school year, presumably to quell behavior that teachers considered disruptive or dangerous.

That means nearly 70,000 special education students were restrained or secluded in that school year, the most recent for which data are available. For most students, this happened more than once: States reported more than 200,000 such incidents, so on average, a special education student was restrained or secluded about three times.

These statistics, based on an analysis by the Education Week Research Center of data collected by the U.S. Department of Education's office for civil rights, represent the best national snapshot of these controversial practices."