A craze on the social media app has seen children share videos of staff with inappropriate hashtags and comments and, sometimes, superimposing their faces onto pornography.
A Swansea Valley school said it called the police after staff were secretly filmed and labelled #paedo on the app.
TikTok said it had no place for hateful behaviour, bullying and harassment.
Gemma Morgan, assistant head teacher at Cwmtawe Community School, Pontardawe, said a fake school TikTok account had been set up.
It contained edited videos of virtual parentsâ evenings and lessons, as well as covert filming of staff that had been uploaded and doctored.
âThey had edited them, put hashtags over the top, they created memes⊠there were several hashtags with âpaedoâ,â she said. âSome members of staff had been filmed discreetly within classrooms.â
She said there were âextremely derogatory commentsâ and âvery bad languageâ.
âIn all honesty, things that were of great concern and we engaged with the local police.â
The situation had been âvery upsettingâ for staff, she said.
NASUWTâs National Official for Wales Neil Butler said the craze was having a âhuge detrimental impact on the wellbeing of teachers in schools across the UKâ.
âWe have examples of teachers going off on sick, on stress, we have examples of teachers leaving the profession, which of course is the greatest worry - we canât afford to lose experienced teachers from the classroom,â he said. âItâs the last straw really - it was bad enough what they had to go through during the pandemic⊠and now [theyâre] having to face this.â
Eithne Hughes, Cymru Director at ASCL union, said she had also seen examples of racial slurs and teachers accused of having affairs. âTeachers are looking over their shoulders⊠itâs been a very squalid and sorry affair. Itâs cruel and unnecessary and the profession should not have to put up with it frankly.â
She said complaints to TikTok had been met in one of two ways: âNo response at all, or that it does not violate TikTokâs own protocols, which is extraordinary.â
A spokeswoman for TikTok said: âWe are crystal clear that hateful behaviour, bullying and harassment have no place on TikTok. We regret the distress caused to some teachers as a result of abusive content posted to our platform.â
She said the company had deployed additional technical measures and guidance and continued to âproactively detect and remove violative content and accountsâ.
The Welsh government said: âIt is completely unacceptable that teachers are being targeted with abuse on social media.â
It said it had asked TikTok to remove any instances of inappropriate or offensive content immediately and advise affected staff to report any instances directly to TikTok and contact POSH.
Links:
- More than 80 reports over TikTok school abuse
- TikTok takes extra steps to curb dangerous challenges
- TikTok abuse âis pushing teachers over the edgeâ
Another instance of the âlunatics (uncontrolled children) taking over the asylum (the internet)â