Post- truth was 2016’s Word of the Year, according to Oxford Dictionaries. Fake news and information bubbles are not new but awareness of their impact on public opinion has increased. People need to be able to evaluate and share information responsibly. One response is to integrate these skills within the curriculum. However, this raises questions: How can we know which sources to trust? The ways in which people think about such questions are called ‘epistemic cognition’. Researchers have developed ways of promoting learners’ epistemic cognition. These include promoting understanding of the nature of knowledge and justification as well as fostering abilities to assess the validity of claims and form sound arguments.