📖 Builders: Context Detective Pro

A fully interactive B1.1 Word Lab lesson for teens that builds the reader's most useful skill: inferring an unknown word from the sentence around it. Learners begin with four warm-up questions about what they do when they meet a hard word, then study the detective toolkit in two blocks: the three-move method (read to the end, look for a clue, guess and check) and the Four Clue Types side by side — Definition (meaning stated after 'or', 'is', 'which means'), Example (groups shown with 'such as' and 'like'), Contrast (opposites flagged by 'but' and 'unlike') and Feeling (tone showing good or bad), each with a signal-word panel. Ten key words (clue, context, infer, definition, example, contrast, tone, signal word, evidence, unfamiliar) appear with full B1 definitions and examples, and six become review flashcards. The reading, 'The Context Detectives', stars Priya, Marco, Aylin and Sam solving four unknown words live using each clue type, with seven hover-tooltip words to model inference. Practice offers eight fill-in-the-blank items naming clue types and key words with hints and live scoring; speaking gives five clue-hunt prompts and a six-line model dialogue; the writing task is a 40–70 word inference report with a four-point checklist and auto-saving counter; and an eight-question quiz mixes clue-type identification with two reading-comprehension questions, per-question explanations, a result circle and localStorage persistence.