Primary schools in Donegal are among the most overcrowded in the country.
Over 80% of primary school children in the County are in class sizes greater than the EU average.
New figures from the Irish National Teachers Organisation show that 83% of pupils in Donegal are in classes of twenty or more.
While a fifth of pupils are in classes of more than thirty children.
Peter Mullen from the INTO said the government are not tackling the problem of overcrowded classrooms......