More than 100 school buildings containing a dangerous concrete will be rebuilt or refurbished, the government has confirmed.
It says all affected schools will receive funding to permanently remove it - although, unions say the announcement includes no new money.
In England, 234 schools contain reinforced autoclaved aerated concrete (Raac).
The material was used as a cheaper alternative to standard concrete.
But after a beam collapsed, schools containing Raac were told to shut areas where no safety measures were in place, just days before the start of term last August.
All schools built in the era when the concrete was used have now responded to a questionnaire, the Department for Education (DfE) has said, and surveys have been completed on all those that suspected they might have Raac.
A small number of schools and colleges were conducting additional checks, for further assurance, in some spaces, it added.
Raac, used between the 1950s and 1990s, has a lifespan of about 30 years .
Of the 234 schools and colleges confirmed to contain the concrete:
- 119 will have one or more buildings rebuilt or refurbished through the school rebuilding programme (SRP)
- 110 will receive grant funding to remove it from their buildings
- five have alternative arrangements in place - for example, the building will no longer be part of the school estate
All 234 (about 1% of all schools in England) have reportedly returned to face-to face learning - but many children are still being taught in marquees, portable classrooms or off site.