The Association for Science Education (ASE) is the foremost body for science education across the UK. ASE Green Tick quality assurance is carried out by ASE experts to identify areas of strength and, if found, weakness. The aim is to support schools and other relevant education bodies to make informed decisions on how they might use commercial materials. The ASE Green Tick provides guidance on the suitability of a potential resource and how the materials might support teaching and learning. The quality assurance is undertaken at the time of publication of the materials. The ASE Green Tick does not constitute an endorsement by ASE.