A teenager accused of murdering teacher Ann Maguire in her classroom "has accepted responsibility for the unlawful killing", Richard Wright QC, defending, told Leeds Crown Court.
No pleas were entered and a trial on the murder charge is scheduled to take place in November.
Ms Maguire 61, was fatally stabbed at Corpus Christi Catholic College in Halton Moor on April 28.
Mrs Maguire's death was the first time a teacher has been stabbed to death in a British classroom and the first killing of a teacher in a school since the 1996 Dunblane massacre.
More top news
A fine start into a new month with sunny spells and cloud coming and going.
One of art's mysteries has been solved, and while the lady in the Mona Lisa remains unconfirmed, we now know what the mark in The Scream is.
Donald Trump has visited Mexico's President Enrique Pena Nieto and discussed the Republican's plan to build a wall between the countries.