Teachers at a west London academy began a two-day strike on Tuesday of this week in a dispute over excessive workload and bullying.
This followed a successful walkout on Thursday of last week.
The action at Alec Reed Academy in Ealing involved members of the NUT and NASUWT unions. More than 30 strikers joined picket lines at the school on Thursday.
Stefan Simms is assistant secretary of Ealing NUT.
He told Socialist Worker, “One teacher at the school described a primary school class that has had 15 different teachers since September.
“Some teachers are leaving because of the atmosphere at the school, others are supply staff or short-term staff. For children, especially young children, that’s very unsettling.
“It’s genuinely shocking. And it’s heartbreaking because the children think the teachers are leaving because there’s something wrong with them.”
Parents are backing the strike because they can see the high and rapid turnover of staff is damaging their children’s education.
“Some 300 parents came to a public meeting to support the teachers the evening before the strike,” said Stefan.
“Parents are already angry at how their children have been treated. They keep telling us to be strong.”
Teachers plan to strike again for three days next week.