Are you allowed to use that picture you just downloaded in your work? The Internet makes it so easy to grab digital information and re-use it – but did the people who put it there intend for you to be able to use in your own materials?
Students and teachers alike are often confused about what they are allowed to use. The UK Intellectual Property Office makes some comments here that help to untangle the issues surrounding copyright. It can be a minefield, but raising the issue with colleagues and students might raise a few eyebrows and give a starting point for considering best practice.