The jury of seven men and five women has been told the defendant has pleaded guilty to three counts of wounding with intent and possession of a bladed article on school premises but denies attempted murder.
She allegedly tried to kill teachers Fiona Elias and Liz Hopkin and a student at Ysgol Dyffryn Aman - also known as Amman Valley school - in Ammanford, Carmarthenshire, on 24 April last year.
A teenage girl accused of the attempted murder of two teachers and a pupil took a knife to school "every day" because she was "anxious" and "scared", a trial has heard.
On the fifth day of the trial, the defendant said the attack was "really out of character" and "doesn't seem like something I would do".
In the aftermath of the attack, the defendant remembers telling her - "It's your fault" - but told the jury she did accept it was not the child's fault.
