Recommended for children aged 5+, Do You Know? is a series of levelled non-fiction books featuring video content, project work and critical-thinking activities. Each book asks a range of BIG questions, developing children's language, communication and investigation skills. This Level 4 Reader is A2 in the CEFR framework and supports YLE Flyers exams. The longer text is made up of sentences with up to three clauses, more complex past and future tense structures, modal verbs and a wider variety of conjunctions. Can you live inside a video game? Are video games a sport? Find out more about graphics, virtual reality and video games.