Affiliate station KARK reports the worker, Keyuanna Coats, has a previous conviction that should have prevented her from working at the daycare in the first place.
The video shows Coats kick an 8-month-old boy then grab him by the ankle and drag him halfway across the room.
In another video, Coats again grabs the child by the ankle, this time dragging him even farther.
The 20-year-old was arrested after the child's mother noticed what she called severe rug burns on his arms and called police.
"She was very apologetic. She understood it wasn't right," said Arteja Stamps, owner of the Wisdom Tree Learning Academy.
In a Tuesday interview, Stamps said she fired Coats for her actions, touting the daycare's strict rules for employees, including rigorous background checks.
"All employees pass with flying colors," Stamps said.
According to a Little Rock Police report, Coats and another suspect were accused of beating up a woman in September 2012.
Coats was first charged with felony battery but later pleaded down to a misdemeanor.
There was no answer at Coats' address listed in the latest arrest report, and wasn't accessible over the phone.
"This is our most vulnerable that we're talking about," said Kate Luck with the Arkansas Department of Human Services (DHS).
To protect kids, state law says someone with a misdemeanor battery conviction is not allowed to work with children at a daycare.
But because Coats wasn't convicted until after she was hired, she would have passed a DHS background check.
"It comes down to the owners and the managers who have to report it to us," Luck said.
The problem is it's only a violation if daycares don't report arrests they know about, and employees aren't required by law to tell management.
Once a daycare employee is hired, background checks are run every five years.
Checks, specifically for crimes against children. are required every two years.
KARK asked the owner of the daycare for a follow up interview today but she declined.
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