The use of reduced timetables in schools has been described as an unacceptable practice that can have devastating consequences.
That's according to testimony at the Oireachtas Education Committee, chaired by Kildare South Fianna Fáil TD, Fiona O'Loughlin
Some schools cut the amount of time a child spends in class because of their "challenging behaviour" and a lack of learning supports available.
Concern's been raised that some children - such as those with disabilities and from traveller backgrounds - are disproportionately affected by the practice.
Founder of autism charity As I Am, Adam Harris, says they carried out a survey earlier this year to get a clearer picture of how much of a problem it is: