It's about workload, says NASUWT
More industrial action is planned for Manx schools this week.
Members of NASUWT, the teaching union, have been asked not to cover staff absences or help with after school activities.
It's to try and force government back to the negotiating table over a row about pension pay and working conditions.
Damien McNulty is the national executive member for NASUWT.
He spoke to Ewan Gawne:
Smile of Mann programme to start in primary schools next year
Fluoride varnish treatments to be delivered by a dedicated team
Loganair passengers yet to be reunited with bags left in Manchester on Sunday
The airline has blamed stormy weather for the delay
Kirk Michael man taking on 31 marathons in 31 days in memory of friend
Albert Johnson is raising money for Autism Initiatives UK
Government grant partially funded fishing vessel later used for smuggling
Boat was later used to smuggle £310,000 worth of cannabis to the Island
CRHS plans are progressing, insists education minister
It's hoped building work could start next summer