And scotland will be fully or partially closed today, because of concerns about crumbling concrete. Investigations are also under way in schools in wales and Northern Ireland. Ministers have promised to speed up checks on schools where the material, known as raac, may have been used. 0ur reporter Louisa Pilbeam reports. From the midlands to suffolk. And london. More than 100 schools in england look like this today, with buildings roped off and closed on what for many should be the first day of the new term. The problem crumbling concrete called raac, meaning many schools are unsafe. Sarah, a mum of two who didnt want to be on camera, told us. The main issue for me is we dont have any certainty about when the children are going Back To School. The lack of certainty right now is worrying for everyone. The school havent been that specific about the actual meanwhile, on social media sites, including mumsnet, one parent said. The government has been criticised for not acting faster despite