How big is a camera? How small is the smallest robot? Find out more about nanotechnology and the world's smallest things. Tiny Technology, a 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. Ladybird Do You Know? is a STEM-based ELT graded reading series recommended for children aged 5+ who are learning English as a foreign or second language. These levelled non-fiction books feature video content, project work and criticalthinking activities. Each book asks a range of BIG questions on STEM topics from nocturnal animals to building bridges, developing children's language, communication and investigation skills.