Teacher Pam Manning and two aides, who haven't been publicly identified, are accused of forcing vinegar-soaked cotton balls into the mouths of autistic students and making them run on treadmills for extended periods of time during last school year.
Many of Manning's students are nonverbal.
The Katy Independent School District has condemned the alleged practices. The school principal reported Manning and the aides to law enforcement, which is currently deciding whether to file charges.
The aides have both been fired. Manning has been removed from teaching and is "undergoing contract arbitration".