The teacher told the tribunal her daughter said the respondent "did this to all the naughty children in the class''.
''[The daughter] said that the respondent's fingernails were very long and that was what really hurt.''
The matter was raised with the principal the next day.
The children in the respondent's class were interviewed and they spoke of pinching, yelling and pulling, the tribunal said.
The respondent admitted to the accusations and resigned.
Notes of the school meeting recorded her "unqualified acknowledgement that she had failed the children of the school''.
She told the tribunal she was "deeply distressed and shamed'' and promised to never teach again.
The tribunal said her actions met the definition of serious misconduct.
''...it amounts to physical abuse of a child, probably psychological abuse of a child, and conduct bringing discredit on the profession.''
But it noted the "genuineness of her remorse and the difficult circumstances that she experienced in the year or so prior to the incidents in question''.
The woman's father had died, her mother had become ill and the teacher had to look after her.
Also, the teacher had herself also become ill and was prescribed anti-depressive medication, the tribunal said.
While her name was not struck off the register, the tribunal imposed strict conditions should she ever attempt to teach again, including disclosing the disciplinary action to any future employer and be mentored for the first 12 months of teaching.