Pupils and parents are facing more disruption as tens of thousands of teachers walk out of schools and sixth-form colleges across England.
Teacher members of the National Education Union (NEU) are back on picket lines on Tuesday as they stage a fresh strike in a long-running pay row.
The NEU – which also staged a strike on Thursday – believed the majority of schools would either restrict access to pupils or fully close during the walkouts.
It is the sixth day an individual school in England has faced strike action by members of the NEU this year.
The NEU issued guidance saying it would support arrangements that “provide the minimum level of teaching staff needed” on strike days so pupils with upcoming exams could attend classes.
Some teachers will be on the picket line but go in to teach their A-level class in the afternoon, the leader of the NEU said.
