CERN@school uses a pixel detector chip from the Medipix Collaboration at CERN packaged by Langton students for use in schools to detect ionising radiation. It was first developed as a project in ten schools in Kent. We then received support from SEPnet to roll it out across the South East to University school partnerships. Now with an STFC Large Award we have a National project collaborating with the Institute of Physics across 28 schools and research institutions. Teacher Network Coordinators from the IOP support their local schools in using the CERN@school kit for curriculum learning and extension research projects. Radiation Around You is a CERN@school national project mapping background radiation across the UK using ArcGIS software. CERN@school is a CERN flagship project for technology transfer and is hosted on the CERN website.