A statement from Dallas ISD confirmed the investigation and offered no further comment, calling it a "personnel matter."
"Today, we were made aware of a social media posting being circulated involving a teacher at W. H. Adamson High School. The teacher has been placed on administrative leave and the district has opened an investigation. This is a personnel matter and as such we can not comment.”
The teacher uploaded the video to her own Instagram account before deleting it.
The Secret Service has been notified about the video.
This piece has been updated to include a statement from Dallas ISD.