State District Judge Sid Harle also sentenced Cynthia Ambrose, 44, to two years probation in order to prevent her from returning to the classroom, the San Antonio Express-News reported Wednesday.
The judge said he was unhappy to learn that Ambrose faced only a one-year suspension by the Texas Education Agency.
The former Salinas Elementary School teacher was found guilty of official oppression for telling her students to show 6-year-old Aiden Neeley "how it feels to be bullied."
She had the students line up and hit Neeley on May 2, 2012.
Her lawyer, Dayna Jones, argued that few students had a good recollection of what took place.
Neeley, now 7-years-old, testified that he only remembered getting hit by students.