Schools are removing logos and references to Ofsted ratings from their websites as a mark of solidarity with headteacher Ruth Perry, who took her own life while waiting for a negative inspection report.
Headteachers are planning to stage peaceful protests – including wearing black clothing and armbands and displaying photographs of Ms Perry around the school – when Ofsted inspections take place.
Pressure is mounting on the watchdog as school leaders and unions are calling for urgent reform of the inspection system following the death of Ms Perry.
The headteacher at Caversham Primary School in Reading killed herself in January while waiting for an Ofsted report which downgraded her school to the lowest possible rating, her family said.
In a letter to Ofsted on Wednesday, school and college leaders across Reading said they wanted the “terrible tragedy to mark a turning point” in the way school inspections are carried out by the watchdog.